ORCID Profile
0000-0002-8538-9195
Current Organisation
Australian National University
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Astronomical and Space Sciences | Astronomy And Astrophysics | Cosmology and Extragalactic Astronomy | Astronomical and Space Instrumentation | Galactic Astronomy | Information Storage, Retrieval And Management | Photonics, Optoelectronics and Optical Communications | Information Systems Development Methodologies | Optical Properties of Materials | Atmospheric Sciences | Navigation And Position Fixing | Information Systems | Resources Engineering and Extractive Metallurgy not elsewhere classified | Evolutionary Biology not elsewhere classified | Instruments And Techniques | Climate Change Processes | Information Systems Organisation | Communications Technologies | Computer Hardware | Electrical Engineering | Robotics And Mechatronics | Composite and Hybrid Materials | Optics And Opto-Electronic Physics | Global Information Systems | Database Management | Broadband Network Technology | Antenna Technology | Structural Engineering | Digital Systems | Astronomical and Space Sciences not elsewhere classified | Stellar Astronomy and Planetary Systems | Enzymes | Image Processing | Theoretical and Computational Chemistry not elsewhere classified | Computational Fluid Dynamics | Computer Hardware Not Elsewhere Classified | Bioinformatics | Particle Physics | Tectonics
ANZSRC Socio-Economic Objective (SEO)
Physical sciences | Scientific instrumentation | Expanding Knowledge in the Physical Sciences | Information processing services | Information services not elsewhere classified | Expanding Knowledge in Technology | Expanding Knowledge in Engineering | Application tools and system utilities | Solar-photoelectric | Civil Construction Design | Antarctic and Sub-Antarctic Oceanography | Data, image and text equipment | Oil and Gas Extraction | Cardiovascular System and Diseases | Computer hardware and electronic equipment not elsewhere classified | Effects of Climate Change and Variability on Australia (excl. Social Impacts) | Library and related information services | Technological and organisational innovation | Integrated circuits and devices | Aerospace Transport not elsewhere classified | Expanding Knowledge in the Earth Sciences | Expanding Knowledge in the Chemical Sciences | Expanding Knowledge in the Agricultural and Veterinary Sciences | Expanding Knowledge in the Biological Sciences |
Related Links
Publications
SkyMapper Southern Survey: Second data release (DR2)
Publisher: Cambridge University Press (CUP)
Date: 2019
DOI: 10.1017/PASA.2019.27
Abstract: We present the second data release (DR2) of the SkyMapper Southern Survey, a hemispheric survey carried out with the SkyMapper Telescope at Siding Spring Observatory in Australia, using six optical filters: u, v, g, r, i, z . DR2 is the first release to go beyond the $\\sim\\!18$ mag (10 $\\sigma$ ) limit of the Shallow Survey released in the first data release (DR1), and includes portions of the sky at full survey depth that reach $ \\!21$ mag in g and r filters. The DR2 photometry has a precision as measured by internal reproducibility of 1% in u and v , and 0.7% in griz . More than 21 000 $\\deg^2$ have data in some filters (at either Shallow or Main Survey depth) and over 7 000 $\\deg^2$ have deep Main Survey coverage in all six filters. Finally, about 18 000 $\\deg^2$ have Main Survey data in i and z filters, albeit not yet at full depth. The release contains over 120 000 images, as well as catalogues with over 500 million unique astrophysical objects and nearly 5 billion in idual detections. It also contains cross-matches with a range of external catalogues such as Gaia DR2, Pan-STARRS1 DR1, GALEX GUVcat, 2MASS, and AllWISE, as well as spectroscopic surveys such as 2MRS, GALAH, 6dFGS, and 2dFLenS.
Cosmological implications of the very high redshift GRB 050904
Publisher: American Astronomical Society
Date: 10-07-2006
DOI: 10.1086/504414
The faint optical afterglow and host galaxy of GRB 020124: Implications for the nature of dark gamma-ray bursts
Publisher: American Astronomical Society
Date: 20-12-2002
DOI: 10.1086/344262
SkyMapper Southern Survey: First Data Release (DR1)
Publisher: Cambridge University Press (CUP)
Date: 2018
DOI: 10.1017/PASA.2018.5
Abstract: We present the first data release of the SkyMapper Southern Survey, a hemispheric survey carried out with the SkyMapper Telescope at Siding Spring Observatory in Australia. Here, we present the survey strategy, data processing, catalogue construction, and database schema. The first data release dataset includes over 66 000 images from the Shallow Survey component, covering an area of 17 200 deg 2 in all six SkyMapper passbands uvgriz , while the full area covered by any passband exceeds 20 000 deg 2 . The catalogues contain over 285 million unique astrophysical objects, complete to roughly 18 mag in all bands. We compare our griz point-source photometry with Pan-STARRS1 first data release and note an RMS scatter of 2%. The internal reproducibility of SkyMapper photometry is on the order of 1%. Astrometric precision is better than 0.2 arcsec based on comparison with Gaia first data release. We describe the end-user database, through which data are presented to the world community, and provide some illustrative science queries.
Hubble space telescope and spitzer observations of the afterglow and host galaxy of GRB 050904 at z = 6.295
Publisher: American Astronomical Society
Date: 10-08-2007
DOI: 10.1086/519511
Elevation models for reproducible evaluation of terrain representation
Publisher: Informa UK Limited
Date: 04-11-2020
Formation of the black hole in Nova Scorpii
Publisher: American Astronomical Society
Date: 03-2002
DOI: 10.1086/338418
Testing gravitational lensing as the source of enhanced strong Mg II absorption toward gamma-ray bursts
Publisher: American Astronomical Society
Date: 18-07-2012
Measuring nickel masses in Type Ia supernovae using cobalt emission in nebular phase spectra
Publisher: Oxford University Press (OUP)
Date: 23-10-2015
The farthest known supernova: Support for an accelerating universe and a glimpse of the epoch of deceleration
Publisher: American Astronomical Society
Date: 10-10-2001
DOI: 10.1086/322348
The Atmospheres of Type II Supernovae and the Expanding Photosphere Method
Publisher: American Astronomical Society
Date: 08-1996
DOI: 10.1086/177563
The early spectral evolution of SN 2004dt
Publisher: EDP Sciences
Date: 04-09-2007
Hunting for the progenitor of SN 1006: High-resolution spectroscopic search with the flames instrument
Publisher: American Astronomical Society
Date: 11-10-2012
The H i gas content of galaxies around Abell 370, a galaxy cluster at z = 0.37
Publisher: Oxford University Press (OUP)
Date: 11-2009
Modeling the Hubble Space Telescope ultraviolet and optical spectrum of spot 1 on the circumstellar ring of SN 1987A
Publisher: American Astronomical Society
Date: 20-06-2002
DOI: 10.1086/340453
HATS-2b: A transiting extrasolar planet orbiting aK-type star showing starspot activity
Publisher: EDP Sciences
Date: 10-2013
Reconciliation of the surface brightness fluctuation and type Ia supernova distance scales
Publisher: American Astronomical Society
Date: 10-2001
DOI: 10.1086/322342
UBVRIzLIGHT CURVES OF 51 TYPE II SUPERNOVAE
Publisher: American Astronomical Society
Date: 27-01-2016
Gnosis: The first instrument to use fiber bragg gratings for oh suppression
Publisher: American Astronomical Society
Date: 16-01-2013
HATS-13b and HATS-14b: two transiting hot Jupiters from the HATSouth survey
Publisher: EDP Sciences
Date: 08-2015
Using line profiles to test the fraternity of type Ia supernovae at high and low redshifts
Publisher: American Astronomical Society
Date: 03-2006
DOI: 10.1086/498724
Constraining cosmic evolution of type la supernovae
Publisher: American Astronomical Society
Date: 09-2008
DOI: 10.1086/589612
Suppression of the near-infrared OH night-sky lines with fibre Bragg gratings - first results
Publisher: Oxford University Press (OUP)
Date: 17-08-2012
The ANU WiFeS SuperNovA Programme (AWSNAP)
Publisher: Cambridge University Press (CUP)
Date: 2016
DOI: 10.1017/PASA.2016.47
Abstract: This paper presents the first major data release and survey description for the ANU WiFeS SuperNovA Programme. ANU WiFeS SuperNovA Programme is an ongoing supernova spectroscopy c aign utilising the Wide Field Spectrograph on the Australian National University 2.3-m telescope. The first and primary data release of this programme (AWSNAP-DR1) releases 357 spectra of 175 unique objects collected over 82 equivalent full nights of observing from 2012 July to 2015 August. These spectra have been made publicly available via the WISEREP supernova spectroscopy repository. We analyse the ANU WiFeS SuperNovA Programme s le of Type Ia supernova spectra, including measurements of narrow sodium absorption features afforded by the high spectral resolution of the Wide Field Spectrograph instrument. In some cases, we were able to use the integral-field nature of the Wide Field Spectrograph instrument to measure the rotation velocity of the SN host galaxy near the SN location in order to obtain precision sodium absorption velocities. We also present an extensive time series of SN 2012dn, including a near-nebular spectrum which both confirms its ‘super-Chandrasekhar’ status and enables measurement of the sub-solar host metallicity at the SN site.
ESC observations of SN 2005cf
Publisher: EDP Sciences
Date: 02-05-2007
Radio-size estimates of SN 1993J
Publisher: American Astronomical Society
Date: 03-1994
DOI: 10.1086/187266
A photometric redshift of z = 6.39 ± 0.12 for GRB 050904
Publisher: Springer Science and Business Media LLC
Date: 03-2006
DOI: 10.1038/NATURE04552
Abstract: Gamma-ray bursts (GRBs) and their afterglows are the most brilliant transient events in the Universe. Both the bursts themselves and their afterglows have been predicted to be visible out to redshifts of z approximately 20, and therefore to be powerful probes of the early Universe. The burst GRB 000131, at z = 4.50, was hitherto the most distant such event identified. Here we report the discovery of the bright near-infrared afterglow of GRB 050904 (ref. 4). From our measurements of the near-infrared afterglow, and our failure to detect the optical afterglow, we determine the photometric redshift of the burst to be z = 6.39 - 0.12 + 0.11 (refs 5-7). Subsequently, it was measured spectroscopically to be z = 6.29 +/- 0.01, in agreement with our photometric estimate. These results demonstrate that GRBs can be used to trace the star formation, metallicity, and reionization histories of the early Universe.
Photometric and spectroscopic observations of SN 1990E in NGC 1035 - Observational constraints for models of type II supernovae
Publisher: American Astronomical Society
Date: 06-1993
DOI: 10.1086/116602
Time Dilation from Spectral Feature Age Measurements of Type IA Supernovae.
Publisher: American Astronomical Society
Date: 08-1997
DOI: 10.1086/118506
The afterglow, energetics, and host galaxy of the short-hard gamma-ray burst 051221a
Publisher: American Astronomical Society
Date: 10-10-2006
DOI: 10.1086/506429
Supernova Limits on the Cosmic Equation of State
Publisher: American Astronomical Society
Date: 10-12-1998
DOI: 10.1086/306495
Probing the stellar halo of the milky way with the SEKBO RR Lyrae survey
Publisher: American Astronomical Society
Date: 09-08-2012
Scrutinizing exotic cosmological models using essence supernova data combined with other cosmological probes
Publisher: American Astronomical Society
Date: 10-09-2007
DOI: 10.1086/519988
The ESSENCE Supernova Survey: Survey Optimization, Observations, and Supernova Photometry
Publisher: American Astronomical Society
Date: 10-09-2007
DOI: 10.1086/519986
A 0.24+0.18 M⊙ double-lined eclipsing binary from the HATSouth survey
Publisher: Oxford University Press (OUP)
Date: 12-06-2015
Relativistic ejecta from X-ray flash XRF 060218 and the rate of cosmic explosions
Publisher: Springer Science and Business Media LLC
Date: 08-2006
DOI: 10.1038/NATURE05087
Abstract: Over the past decade, long-duration gamma-ray bursts (GRBs)--including the subclass of X-ray flashes (XRFs)--have been revealed to be a rare variety of type Ibc supernova. Although all these events result from the death of massive stars, the electromagnetic luminosities of GRBs and XRFs exceed those of ordinary type Ibc supernovae by many orders of magnitude. The essential physical process that causes a dying star to produce a GRB or XRF, and not just a supernova, is still unknown. Here we report radio and X-ray observations of XRF 060218 (associated with supernova SN 2006aj), the second-nearest GRB identified until now. We show that this event is a hundred times less energetic but ten times more common than cosmological GRBs. Moreover, it is distinguished from ordinary type Ibc supernovae by the presence of 10(48) erg coupled to mildly relativistic ejecta, along with a central engine (an accretion-fed, rapidly rotating compact source) that produces X-rays for weeks after the explosion. This suggests that the production of relativistic ejecta is the key physical distinction between GRBs or XRFs and ordinary supernovae, while the nature of the central engine (black hole or magnetar) may distinguish typical bursts from low-luminosity, spherical events like XRF 060218.
Spectroscopy of high-redshift supernovae from the essence project: The first 2 years
Publisher: American Astronomical Society
Date: 05-2005
DOI: 10.1086/429679
HATS-11B AND HATS-12B: TWO TRANSITING HOT JUPITERS ORBITING SUBSOLAR METALLICITY STARS SELECTED FOR THE K2 CAMPAIGN 7
Publisher: American Astronomical Society
Date: 21-09-2016
GRB 010921: Strong limits on an underlying supernova from the Hubble Space Telescope
Publisher: American Astronomical Society
Date: 20-02-2003
DOI: 10.1086/345734
Optical and Radio Observations of the Afterglow from GRB 990510: Evidence for a Jet
Publisher: American Astronomical Society
Date: 10-1999
DOI: 10.1086/312282
HATS-15b and HATS-16b: Two Massive Planets Transiting Old G Dwarf Stars
Publisher: IOP Publishing
Date: 10-06-2016
Spectroscopy of high-redshift supernovae from the essence project: The first four years
Publisher: American Astronomical Society
Date: 04-03-2009
The correlation between star formation and 21-cm emission during the reionization epoch
Publisher: Oxford University Press (OUP)
Date: 23-08-2007
Spectral diversity of Type Ia supernovae
Publisher: Oxford University Press (OUP)
Date: 08-2006
Optical-Infrared ANDICAM Observations of the Transient Associated with GRB 030329
Publisher: American Astronomical Society
Date: 2004
DOI: 10.1086/380229
HATS9-b AND HATS10-b: TWO COMPACT HOT JUPITERS IN FIELD 7 OF THE K2 MISSION
Publisher: American Astronomical Society
Date: 07-07-2015
OzDES multifibre spectroscopy for the Dark Energy Survey: first-year operation and results
Publisher: Oxford University Press (OUP)
Date: 29-07-2015
Exploring the Galaxy’s halo and very metal-weak thick disc with SkyMapper and Gaia DR2
Publisher: Oxford University Press (OUP)
Date: 04-11-2020
Abstract: In this work, we combine spectroscopic information from the SkyMapper survey for Extremely Metal-Poor stars and astrometry from Gaia DR2 to investigate the kinematics of a s le of 475 stars with a metallicity range of $-6.5 \le \rm [Fe/H] \le -2.05$ dex. Exploiting the action map, we identify 16 and 40 stars dynamically consistent with the Gaia Sausage and Gaia Sequoia accretion events, respectively. The most metal poor of these candidates have metallicities of $\rm [Fe/H]=-3.31\, \mathrm{ and }\, -3.74$, respectively, helping to define the low-metallicity tail of the progenitors involved in the accretion events. We also find, consistent with other studies, that ∼21 per cent of the s le have orbits that remain confined to within 3 kpc of the Galactic plane, that is, |Zmax| ≤ 3 kpc. Of particular interest is a subs le (∼11 per cent of the total) of low |Zmax| stars with low eccentricities and prograde motions. The lowest metallicity of these stars has [Fe/H] = –4.30 and the subs le is best interpreted as the very low-metallicity tail of the metal-weak thick disc population. The low |Zmax|, low eccentricity stars with retrograde orbits are likely accreted, while the low |Zmax|, high eccentricity pro- and retrograde stars are plausibly associated with the Gaia Sausage system. We find that a small fraction of our s le (∼4 per cent of the total) is likely escaping from the Galaxy, and postulate that these stars have gained energy from gravitational interactions that occur when infalling dwarf galaxies are tidally disrupted.
The Science Case for PILOT I: Summary and Overview
Publisher: Cambridge University Press (CUP)
Date: 2009
DOI: 10.1071/AS08048
Abstract: PILOT (the Pathfinder for an International Large Optical Telescope) is a proposed 2.5-m optical/infrared telescope to be located at Dome C on the Antarctic plateau. Conditions at Dome C are known to be exceptional for astronomy. The seeing (above ∼30 m height), coherence time, and isoplanatic angle are all twice as good as at typical mid-latitude sites, while the water-vapour column, and the atmosphere and telescope thermal emission are all an order of magnitude better. These conditions enable a unique scientific capability for PILOT, which is addressed in this series of papers. The current paper presents an overview of the optical and instrumentation suite for PILOT and its expected performance, a summary of the key science goals and observational approach for the facility, a discussion of the synergies between the science goals for PILOT and other telescopes, and a discussion of the future of Antarctic astronomy. Paper II and Paper III present details of the science projects ided, respectively, between the distant Universe (i.e. studies of first light, and the assembly and evolution of structure) and the nearby Universe (i.e. studies of Local Group galaxies, the Milky Way, and the Solar System).
The SkyMapper Transient Survey
Publisher: Cambridge University Press (CUP)
Date: 2017
DOI: 10.1017/PASA.2017.24
Abstract: The SkyMapper 1.3 m telescope at Siding Spring Observatory has now begun regular operations. Alongside the Southern Sky Survey, a comprehensive digital survey of the entire southern sky, SkyMapper will carry out a search for supernovae and other transients. The search strategy, covering a total footprint area of ~2 000 deg 2 with a cadence of ⩽5 d, is optimised for discovery and follow-up of low-redshift type Ia supernovae to constrain cosmic expansion and peculiar velocities. We describe the search operations and infrastructure, including a parallelised software pipeline to discover variable objects in difference imaging simulations of the performance of the survey over its lifetime public access to discovered transients and some first results from the Science Verification data.
An energetic afterglow from a distant stellar explosion
Publisher: American Astronomical Society
Date: 18-07-2006
DOI: 10.1086/506934
GRB 060505: A possible short-duration gamma-ray burst in a star-forming region at a redshift of 0.09
Publisher: American Astronomical Society
Date: 20-06-2007
DOI: 10.1086/518082
HATS-17b: A TRANSITING COMPACT WARM JUPITER IN A 16.3 DAY CIRCULAR ORBIT
Publisher: American Astronomical Society
Date: 08-03-2016
The mass–radius relationship for very low mass stars: four new discoveries from the HATSouth Survey★
Publisher: Oxford University Press (OUP)
Date: 11-2013
The normal Type Ia SN 2003hv out to very late phases
Publisher: EDP Sciences
Date: 16-07-2009
A new population of high-redshift short-duration gamma-ray bursts
Publisher: American Astronomical Society
Date: 08-2007
DOI: 10.1086/518762
Observational Constraints on the Nature of Dark Energy: First Cosmological Results from the ESSENCE Supernova Survey
Publisher: American Astronomical Society
Date: 10-09-2007
DOI: 10.1086/518642
A SERENDIPITOUS ALL SKY SURVEY FOR BRIGHT OBJECTS IN THE OUTER SOLAR SYSTEM
Publisher: American Astronomical Society
Date: 19-01-2015
Broadband observations of the afterglow of GRB 000926: Observing the effect of inverse Compton scattering
Publisher: American Astronomical Society
Date: 20-09-2001
DOI: 10.1086/322368
Results of the Mount Stromlo Abell cluster supernova search
Publisher: EDP Sciences
Date: 13-02-2004
Tests of the Accelerating Universe with Near‐Infrared Observations of a High‐Redshift Type Ia Supernova
Publisher: American Astronomical Society
Date: 10-06-2000
DOI: 10.1086/308939
Low luminosity Type II supernovae – II. Pointing towards moderate mass precursors
Publisher: Oxford University Press (OUP)
Date: 21-02-2202
DOI: 10.1093/MNRAS/STU156
HIGH-RESOLUTION SPECTROSCOPIC STUDY of EXTREMELY METAL-POOR STAR CANDIDATES from the SKYMAPPER SURVEY
Publisher: American Astronomical Society
Date: 09-07-2015
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
Publisher: American Astronomical Society
Date: 09-1998
DOI: 10.1086/300499
HATS-3b: AN INFLATED HOT JUPITER TRANSITING AN F-TYPE STAR
Publisher: American Astronomical Society
Date: 27-09-2013
SN 1991T: Reflections of past glory
Publisher: American Astronomical Society
Date: 10-1994
DOI: 10.1086/187562
Afterglows, Redshifts, and Properties ofSwiftGamma‐Ray Bursts
Publisher: American Astronomical Society
Date: 20-11-2005
DOI: 10.1086/491667
Constraints on Type Ib/c Supernovae and Gamma‐Ray Burst Progenitors
Publisher: IOP Publishing
Date: 11-2007
DOI: 10.1086/523768
Locations of peculiar supernovae as a diagnostic of their origins
Publisher: Oxford University Press (OUP)
Date: 05-2013
DOI: 10.1093/MNRAS/STT591
Revealing substructure in the galactic halo: The sekbo RR Lyrae survey
Publisher: American Astronomical Society
Date: 10-05-2008
DOI: 10.1086/526516
Ultra-luminous quasars at redshift z > 4.5 from SkyMapper
Publisher: Oxford University Press (OUP)
Date: 21-10-2020
Abstract: The most luminous quasars at high-redshift harbour the fastest growing and most massive black holes in the early Universe. They are exceedingly rare and hard to find. Here, we present our search for the most luminous quasars in the redshift range from z = 4.5 to 5 using data from SkyMapper, Gaia, and WISE. We use colours to select likely high-redshift quasars and reduce the stellar contamination of the candidate set with parallax and proper motion data. In ∼12 500 deg2 of Southern sky, we find 92 candidates brighter than Rp = 18.2. Spectroscopic follow-up has revealed 21 quasars at z ≥ 4 (16 of which are within z = [4.5, 5]), as well as several red quasars, Broad-Absorption-Line (BAL) quasars and objects with unusual spectra, which we tentatively label OFeLoBALQSOs at redshifts of z ≈ 1 to 2. This work lifts the number of known bright z ≥ 4.5 quasars in the Southern hemisphere from 10 to 26 and brings the total number of quasars known at Rp & 18.2 and z ≥ 4.5 to 42.
Cosmological results from high-z supernovae
Publisher: American Astronomical Society
Date: 09-2003
DOI: 10.1086/376865
The SkyMapper DR1.1 search for extremely metal-poor stars
Publisher: Oxford University Press (OUP)
Date: 12-09-2019
Abstract: We present and discuss the results of a search for extremely metal-poor stars based on photometry from data release DR1.1 of the SkyMapper imaging survey of the southern sky. In particular, we outline our photometric selection procedures and describe the low-resolution (R ≈ 3000) spectroscopic follow-up observations that are used to provide estimates of effective temperature, surface gravity, and metallicity ([Fe/H]) for the candidates. The selection process is very efficient: of the 2618 candidates with low-resolution spectra that have photometric metallicity estimates less than or equal to −2.0, 41 per cent have [Fe/H] ≤ −2.75 and only approximately seven per cent have [Fe/H] −2.0 dex. The most metal-poor candidate in the s le has [Fe/H] −4.75 and is notably carbon rich. Except at the lowest metallicities ([Fe/H] −4), the stars observed spectroscopically are dominated by a ‘carbon-normal’ population with [C/Fe]1D, LTE ≤ +1 dex. Consideration of the A(C)1D, LTE versus [Fe/H]1D, LTE diagram suggests that the current selection process is strongly biased against stars with A(C)1D, LTE 7.3 (predominantly CEMP-s) while any bias against stars with A(C)1D, LTE 7.3 and [C/Fe]1D,LTE +1 (predominantly CEMP-no) is not readily quantifiable given the uncertainty in the SkyMapper v-band DR1.1 photometry. We find that the metallicity distribution function of the observed s le has a power-law slope of Δ(Log N)/Δ[Fe/H] = 1.5 ± 0.1 dex per dex for −4.0 ≤ [Fe/H] ≤ −2.75, but appears to drop abruptly at [Fe/H] ≈ −4.2, in line with previous studies.
HATS-4b: A DENSE HOT JUPITER TRANSITING A SUPER METAL-RICH G STAR
Publisher: American Astronomical Society
Date: 26-06-2014
The broad-lined Type Ic supernova 2003jd★
Publisher: Oxford University Press (OUP)
Date: 17-12-2007
Exploring the Outer Solar System with the ESSENCE Supernova Survey
Publisher: American Astronomical Society
Date: 27-06-2008
DOI: 10.1086/590429
An HST search for supernovae accompanying X-ray flashes
Publisher: American Astronomical Society
Date: 10-07-2005
DOI: 10.1086/430405
Hubble space telescope observations of nine high-redshift essence supernovae
Publisher: American Astronomical Society
Date: 12-2005
DOI: 10.1086/497640
HATS-5b: A TRANSITING HOT SATURN FROM THE HATSouth SURVEY
Publisher: American Astronomical Society
Date: 06-05-0011
The type Ia supernova 1998bu in M96 and the Hubble constant
Publisher: American Astronomical Society
Date: 11-1999
DOI: 10.1086/313275
The unusually long duration gamma-ray burst GRB 000911: Discovery of the afterglow and host galaxy
Publisher: American Astronomical Society
Date: 07-2002
DOI: 10.1086/340585
A theoretical color-velocity correlation for supernovae associated with gamma-ray bursts
Publisher: American Astronomical Society
Date: 15-10-2012
High-velocity features in Type Ia supernova spectra
Publisher: Oxford University Press (OUP)
Date: 29-10-2022
GRB 011121: A massive star progenitor
Publisher: American Astronomical Society
Date: 10-06-2002
DOI: 10.1086/341552
Detection of a supernova signature associated with GRB 011121
Publisher: American Astronomical Society
Date: 10-06-2002
DOI: 10.1086/341551
Discovery of GRB 020405 and its late red bump
Publisher: American Astronomical Society
Date: 06-2003
DOI: 10.1086/374730
Measuring Cosmology with Supernovae
Publisher: Springer Berlin Heidelberg
Date: 2003
HATS-25B THROUGH HATS-30B: A HALF–DOZEN NEW INFLATED TRANSITING HOT JUPITERS FROM THE HATSOUTH SURVEY
Publisher: American Astronomical Society
Date: 04-10-2016
A reconnaissance of the possible donor stars to the Kepler supernova
Publisher: American Astronomical Society
Date: 23-01-2014
On the significance of the excess number of strong Mg II absorbers observed toward gamma-ray bursts
Publisher: American Astronomical Society
Date: 04-03-2013
Time Dilation in Type Ia Supernova Spectra at High Redshift
Publisher: American Astronomical Society
Date: 08-2008
DOI: 10.1086/589568
The SkyMapper telescope and the southern sky survey
Publisher: Cambridge University Press (CUP)
Date: 2007
DOI: 10.1071/AS07001
Abstract: This paper presents the design and science goals for the SkyMapper telescope. SkyMapper is a 1.3-m telescope featuring a 5.7-square-degree field-of-view Cassegrain imager commissioned for the Australian National University's Research School of Astronomy and Astrophysics. It is located at Siding Spring Observatory, Coonabarabran, NSW, Australia and will see first light in late 2007. The imager possesses 16 384 × 16 384 0.5-arcsec pixels. The primary scientific goal of the facility is to perform the Southern Sky Survey, a six-colour and multi-epoch (four-hour, one-day, one-week, one-month and one-year s ling) photometric survey of the southerly 2π sr to g ∼23 mag. The survey will provide photometry to better than 3% global accuracy and astrometry to better than 50 milliarcsec. Data will be supplied to the community as part of the Virtual Observatory effort. The survey will take five years to complete.
The afterglow of GRB 050709 and the nature of the short-hard γ-ray bursts
Publisher: Springer Science and Business Media LLC
Date: 10-2005
DOI: 10.1038/NATURE04189
Abstract: The final chapter in the long-standing mystery of the gamma-ray bursts (GRBs) centres on the origin of the short-hard class of bursts, which are suspected on theoretical grounds to result from the coalescence of neutron-star or black-hole binary systems. Numerous searches for the afterglows of short-hard bursts have been made, galvanized by the revolution in our understanding of long-duration GRBs that followed the discovery in 1997 of their broadband (X-ray, optical and radio) afterglow emission. Here we present the discovery of the X-ray afterglow of a short-hard burst, GRB 050709, whose accurate position allows us to associate it unambiguously with a star-forming galaxy at redshift z = 0.160, and whose optical lightcurve definitively excludes a supernova association. Together with results from three other recent short-hard bursts, this suggests that short-hard bursts release much less energy than the long-duration GRBs. Models requiring young stellar populations, such as magnetars and collapsars, are ruled out, while coalescing degenerate binaries remain the most promising progenitor candidates.
Twenty-three high-redshift supernovae from the institute for astronomy deep survey: Doubling the supernova sample at Z > 0.71,2
Publisher: American Astronomical Society
Date: 20-02-2004
DOI: 10.1086/381122
The Gaia-ESO Survey: the most metal-poor stars in the Galactic bulge
Publisher: Oxford University Press (OUP)
Date: 05-11-2014
The EMBLA survey – metal-poor stars in the Galactic bulge
Publisher: Oxford University Press (OUP)
Date: 29-04-2016
A blinded determination of H0 from low-redshift Type Ia supernovae, calibrated by Cepheid variables
Publisher: Oxford University Press (OUP)
Date: 26-06-2017
Subaru high-resolution spectroscopy of star g in the tycho supernova remnant
Publisher: American Astronomical Society
Date: 04-08-2009
HATS-6b: A WARM SATURN TRANSITING AN EARLY M DWARF STAR, AND A SET OF EMPIRICAL RELATIONS FOR CHARACTERIZING K AND M DWARF PLANET HOSTS
Publisher: American Astronomical Society
Date: 28-04-2015
Hubble Space Telescope and ground-based observations of type Ia supernovae at redshift 0.5: Cosmological implications
Publisher: American Astronomical Society
Date: 05-2006
DOI: 10.1086/498491
A possible low-mass type Ia supernova
Publisher: Springer Science and Business Media LLC
Date: 10-1993
DOI: 10.1038/365728A0
High-Velocity Features: A Ubiquitous Property of Type Ia Supernovae
Publisher: American Astronomical Society
Date: 11-03-2005
DOI: 10.1086/429874
Constraints on Cosmological Models from [ITAL]Hubble Space Telescope[/ITAL] Observations of High-[CLC][ITAL]z[/ITAL][/CLC] Supernovae
Publisher: American Astronomical Society
Date: 02-1998
DOI: 10.1086/311140
Multiwavelength observations of GRB 050820A: An exceptionally energetic event followed from start to finish
Publisher: American Astronomical Society
Date: 20-11-2006
DOI: 10.1086/508149
GRB 070125: The first long-duration gamma-ray burst in a halo environment
Publisher: American Astronomical Society
Date: 10-04-2008
DOI: 10.1086/526491
New [ITAL]Hubble Space Telescope[/ITAL] Observations of High-Velocity L[CLC]y[/CLC]α and Hα in SNR 1987A
Publisher: American Astronomical Society
Date: 20-12-1998
DOI: 10.1086/311780
Nobel lecture: Accelerating expansion of the Universe through observations of distant supernovae
Publisher: American Physical Society (APS)
Date: 13-08-2012
Nucleosynthesis in a Primordial Supernova: Carbon and Oxygen Abundances in SMSS J031300.36-670839.3
Publisher: American Astronomical Society
Date: 08-06-2015
An HST study of the supernovae accompanying GRB 040924 and GRB 041006
Publisher: American Astronomical Society
Date: 2006
DOI: 10.1086/498009
Late-Time Optical and Ultraviolet Spectra of SN 1979C and SN 1980K
Publisher: American Astronomical Society
Date: 02-1999
DOI: 10.1086/300751
A nearly polar orbit for the extrasolar hot jupiter WASP-79b
Publisher: American Astronomical Society
Date: 14-08-2013
SN 1997CY/GRB 970514: A New Piece in the Gamma-Ray Burst Puzzle?
Publisher: American Astronomical Society
Date: 10-04-2000
DOI: 10.1086/308639
The lowest detected stellar Fe abundance: the halo star SMSS J160540.18-144323.1
Publisher: Oxford University Press (OUP)
Date: 17-07-2019
Abstract: We report the discovery of SMSS J160540.18−144323.1, a new ultra metal-poor halo star discovered with the SkyMapper telescope. We measure $\\left[\\rm {Fe}/\\rm {H}\\right]= -6.2 \\pm 0.2$ (1D LTE), the lowest ever detected abundance of iron in a star. The star is strongly carbon-enhanced, $\\left[\\rm {C}/\\rm {Fe}\\right] = 3.9 \\pm 0.2$, while other abundances are compatible with an α-enhanced solar-like pattern with $\\left[\\rm {Ca}/\\rm {Fe}\\right] = 0.4 \\pm 0.2$, $\\left[\\rm {Mg}/\\rm {Fe}\\right] = 0.6 \\pm 0.2$, $\\left[\\rm {Ti}/\\rm {Fe}\\right] = 0.8 \\pm 0.2$, and no significant s- or r-process enrichment, $\\left[\\rm {Sr}/\\rm {Fe}\\right] \\lt 0.2$ and $\\left[\\rm {Ba}/\\rm {Fe}\\right] \\lt 1.0$ (3σ limits). Population III stars exploding as fallback supernovae may explain both the strong carbon enhancement and the apparent lack of enhancement of odd-Z and neutron-capture element abundances. Grids of supernova models computed for metal-free progenitor stars yield good matches for stars of about $10\\, \\rm M_\\odot$ imparting a low kinetic energy on the supernova ejecta, while models for stars more massive than roughly $20\\, \\rm M_\\odot$ are incompatible with the observed abundance pattern.
SkyMapper filter set: Design and fabrication of large-scale optical filters
Publisher: IOP Publishing
Date: 07-2011
DOI: 10.1086/660849
Near-ultraviolet properties of a large sample of type ia supernovae as observed with the swift uvot
Publisher: American Astronomical Society
Date: 13-09-2010
SN 2012ec: mass of the progenitor from PESSTO follow-up of the photospheric phase
Publisher: Oxford University Press (OUP)
Date: 27-02-2015
DOI: 10.1093/MNRAS/STV106
ESC observations of SN 2005cf - I. Photometric evolution of a normal Type Ia supernova
Publisher: Oxford University Press (OUP)
Date: 11-04-2007
Limits from the Hubble space telescope on a point source in SN 1987A
Publisher: American Astronomical Society
Date: 20-08-2005
DOI: 10.1086/431422
LIGHT CURVES OF 213 TYPE Ia SUPERNOVAE FROM THE ESSENCE SURVEY
Publisher: American Astronomical Society
Date: 06-05-2016
The Mount Stromlo Abell Cluster Supernova Search
Publisher: American Astronomical Society
Date: 1998
DOI: 10.1086/300191
The unusual supernova SN1993J in the galaxy M81
Publisher: Springer Science and Business Media LLC
Date: 08-1993
DOI: 10.1038/364600A0
AN EXPLICIT FINITE-DIFFERENCE SIMULATION FOR CHRONOAMPEROMETRY AT A DISK MICROELECTRODE IN A CHANNEL FLOW SOLUTION
Publisher: Elsevier BV
Date: 09-1993
SkyMapper optical follow-up of gravitational wave triggers: Alert science data pipeline and LIGO/Virgo O3 run
Publisher: Cambridge University Press (CUP)
Date: 2021
DOI: 10.1017/PASA.2021.17
Abstract: We present an overview of the SkyMapper optical follow-up programme for gravitational-wave event triggers from the LIGO/Virgo observatories, which aims at identifying early GW170817-like kilonovae out to $\\sim200\\,\\mathrm{Mpc}$ distance. We describe our robotic facility for rapid transient follow-up, which can target most of the sky at $\\delta +10\\deg $ to a depth of $i_\\mathrm{AB}\\approx 20\\,\\mathrm{mag}$ . We have implemented a new software pipeline to receive LIGO/Virgo alerts, schedule observations and examine the incoming real-time data stream for transient candidates. We adopt a real-bogus classifier using ensemble-based machine learning techniques, attaining high completeness ( $\\sim98\\%$ ) and purity ( $\\sim91\\%$ ) over our whole magnitude range. Applying further filtering to remove common image artefacts and known sources of transients, such as asteroids and variable stars, reduces the number of candidates by a factor of more than 10. We demonstrate the system performance with data obtained for GW190425, a binary neutron star merger detected during the LIGO/Virgo O3 observing c aign. In time for the LIGO/Virgo O4 run, we will have deeper reference images allowing transient detection to $i_\\mathrm{AB}\\approx 21\\,\\mathrm{mag}$ .
Expanding photospheres of type II supernovae and the extragalactic distance scale
Publisher: American Astronomical Society
Date: 08-1992
DOI: 10.1086/171659
Observations of the Type II-P SN 1991G in NGC 4088
Publisher: American Astronomical Society
Date: 12-1995
DOI: 10.1086/117735
Hubble space telescope observations of high-velocity Lyα and Hα emission from supernova remnant 1987A: The structure and development of the reverse shock
Publisher: American Astronomical Society
Date: 20-08-2003
DOI: 10.1086/376725
Discovery of the Most Ultra-Luminous QSO Using GAIA, SkyMapper, and WISE
Publisher: Cambridge University Press (CUP)
Date: 2018
DOI: 10.1017/PASA.2018.22
Abstract: We report the discovery of the ultra-luminous quasi-stellar object SMSS J215728.21−360215.1 with magnitude z = 16.9 and W4 = 7.42 at redshift 4.75. Given absolute magnitudes of M 145, AB = −29.3, M 300, AB = −30.12, and log L bol / L bol, ⊙ = 14.84, it is the quasi-stellar object with the highest unlensed UV-optical luminosity currently known in the Universe. It was found by combining proper-motion data from Gaia DR2 with photometry from SkyMapper DR1 and the Wide-field Infrared Survey Explorer. In the GAIA database, it is an isolated single source and thus unlikely to be strongly gravitationally lensed. It is also unlikely to be a beamed source as it is not discovered in the radio domain by either NRAO-VLA Sky Survey or Sydney University Molonglo Southern Survey. It is classed as a weak-emission-line quasi-stellar object and possesses broad absorption line features. A lightcurve from ATLAS spanning the time from 2015 October to 2017 December shows little sign of variability.
HATS-18B: AN EXTREME SHORT-PERIOD MASSIVE TRANSITING PLANET SPINNING UP ITS STAR
Publisher: American Astronomical Society
Date: 20-10-2016
X-Ray Emission from the Supernova Remnant CTA 1
Publisher: American Astronomical Society
Date: 11-1995
DOI: 10.1086/176388
r-Process elements from magnetorotational hypernovae
Publisher: Springer Science and Business Media LLC
Date: 07-07-2021
DOI: 10.1038/S41586-021-03611-2
Abstract: Neutron-star mergers were recently confirmed as sites of rapid-neutron-capture (r-process) nucleosynthesis
HATSouth: A Global Network of Fully Automated Identical Wide-Field Telescopes1
Publisher: IOP Publishing
Date: 02-2013
DOI: 10.1086/669529
Discovery of shell-like radio-structure in SN1993J
Publisher: Springer Science and Business Media LLC
Date: 1995
DOI: 10.1038/373044A0
HATS-8b: A LOW-DENSITY TRANSITING SUPER-NEPTUNE
Publisher: American Astronomical Society
Date: 17-07-2015
HATS-1b: THE FIRST TRANSITING PLANET DISCOVERED BY THE HATSouth SURVEY
Publisher: American Astronomical Society
Date: 21-11-2012
The afterglow and elliptical host galaxy of the short γ-ray burst GRB 050724
Publisher: Springer Science and Business Media LLC
Date: 12-2005
DOI: 10.1038/NATURE04238
Abstract: Despite a rich phenomenology, gamma-ray bursts (GRBs) are ided into two classes based on their duration and spectral hardness--the long-soft and the short-hard bursts. The discovery of afterglow emission from long GRBs was a watershed event, pinpointing their origin to star-forming galaxies, and hence the death of massive stars, and indicating an energy release of about 10(51) erg. While theoretical arguments suggest that short GRBs are produced in the coalescence of binary compact objects (neutron stars or black holes), the progenitors, energetics and environments of these events remain elusive despite recent localizations. Here we report the discovery of the first radio afterglow from the short burst GRB 050724, which unambiguously associates it with an elliptical galaxy at a redshift z = 0.257. We show that the burst is powered by the same relativistic fireball mechanism as long GRBs, with the ejecta possibly collimated in jets, but that the total energy release is 10-1,000 times smaller. More importantly, the nature of the host galaxy demonstrates that short GRBs arise from an old (> 1 Gyr) stellar population, strengthening earlier suggestions and providing support for coalescing compact object binaries as the progenitors.
Multicolor observations of the GRB 000926 afterglow
Publisher: American Astronomical Society
Date: 03-2001
DOI: 10.1086/319152
A high-resolution spectroscopic search for the remaining donor for Tycho'S supernova
Publisher: American Astronomical Society
Date: 21-08-2013
Properties of a gamma-ray burst host galaxy AT z ∼ 5
Publisher: American Astronomical Society
Date: 18-06-2007
DOI: 10.1086/520047
The early optical afterglow of GRB 030418 and progenitor mass loss
Publisher: American Astronomical Society
Date: 02-2004
DOI: 10.1086/380777
A light echo from Type Ia SN 1995E?
Publisher: American Astronomical Society
Date: 20-11-2006
DOI: 10.1086/507826
Gamma‐Ray Bursts and Type Ic Supernova SN 1998bw
Publisher: American Astronomical Society
Date: 10-05-1999
DOI: 10.1086/307131
Wide-field Washington photometry of the NGC 5128 globular cluster system. I. The database
Publisher: American Astronomical Society
Date: 08-2004
DOI: 10.1086/421847
The detailed optical light curve of GRB 030329
Publisher: American Astronomical Society
Date: 05-2004
DOI: 10.1086/383000
A HIGH OBLIQUITY ORBIT FOR THE HOT-JUPITER HATS-14b TRANSITING A 5400 K STAR
Publisher: American Astronomical Society
Date: 19-11-2015
Testing IMC microlensing scenarios: The discrimination power of the supermacho microlensing survey
Publisher: American Astronomical Society
Date: 12-2005
DOI: 10.1086/497060
A novel explosive process is required for the γ-ray burst GRB 060614
Publisher: Springer Science and Business Media LLC
Date: 12-2006
DOI: 10.1038/NATURE05373
Abstract: Over the past decade, our physical understanding of gamma-ray bursts (GRBs) has progressed rapidly, thanks to the discovery and observation of their long-lived afterglow emission. Long-duration (> 2 s) GRBs are associated with the explosive deaths of massive stars ('collapsars', ref. 1), which produce accompanying supernovae the short-duration (< or = 2 s) GRBs have a different origin, which has been argued to be the merger of two compact objects. Here we report optical observations of GRB 060614 (duration approximately 100 s, ref. 10) that rule out the presence of an associated supernova. This would seem to require a new explosive process: either a massive collapsar that powers a GRB without any associated supernova, or a new type of 'engine', as long-lived as the collapsar but without a massive star. We also show that the properties of the host galaxy (redshift z = 0.125) distinguish it from other long-duration GRB hosts and suggest that an entirely new type of GRB progenitor may be required.
The bright optical afterglow of the nearby γ-ray burst of 29 March 2003
Publisher: Springer Science and Business Media LLC
Date: 19-06-2003
DOI: 10.1038/NATURE01734
Swift and optical observations of GRB 050401
Publisher: Oxford University Press (OUP)
Date: 21-01-2006
Ideal bandpasses for Type Ia supernova cosmology
Publisher: IOP Publishing
Date: 02-2006
DOI: 10.1086/499116
Is there an Indication of Evolution of Type [CLC]Ia[/CLC] Supernovae from their Rise Times?
Publisher: American Astronomical Society
Date: 12-1999
DOI: 10.1086/301144
Keck HIRES spectroscopy of SkyMapper commissioning survey candidate extremely metal-poor stars
Publisher: Oxford University Press (OUP)
Date: 07-03-2019
DOI: 10.1093/MNRAS/STZ645
Abstract: We present results from the analysis of high-resolution spectra obtained with the Keck HIRES spectrograph for a s le of 17 candidate extremely metal-poor (EMP) stars originally selected from commissioning data obtained with the SkyMapper telescope. Fourteen of the stars have not been observed previously at high dispersion. Three have [Fe/H] ≤ −3.0, while the remainder, with two more metal-rich exceptions, have −3.0 ≤ [Fe/H] ≤ −2.0 dex. Apart from Fe, we also derive abundances for the elements C, N, Na, Mg, Al, Si, Ca, Sc, Ti, Cr, Mn, Co, Ni, and Zn, and for n-capture elements Sr, Ba, and Eu. None of the current s le of stars is found to be carbon-rich. In general, our chemical abundances follow previous trends found in the literature, although we note that two of the most metal-poor stars show very low [Ba/Fe] (∼−1.7) coupled with low [Sr/Ba] (∼−0.3). Such stars are relatively rare in the Galactic halo. One further star, and possibly two others, meet the criteria for classification as a r-I star. This study, together with that of Jacobson et al. (2015), completes the outcomes of the SkyMapper commissioning data survey for EMP stars.
HATS-22b, HATS-23b and HATS-24b: three new transiting super-Jupiters from the HATSouth project
Publisher: Oxford University Press (OUP)
Date: 28-02-2017
DOI: 10.1093/MNRAS/STX500
Supernova remnants, pulsars and the interstellar medium
Publisher: Cambridge University Press (CUP)
Date: 2000
DOI: 10.1071/AS00083
Abstract: We summarise the proceedings of a workshop on ‘Supernova Remnants, Pulsars and the Interstellar Medium’ which was held at the Special Research Centre for Theoretical Astrophysics at the University of Sydney on 18 and 19 March 1999.
SN 2012fr: Ultraviolet, Optical, and Near-infrared Light Curves of a Type Ia Supernova Observed within a Day of Explosion
Publisher: American Astronomical Society
Date: 12-01-2007
Extremely metal-poor stars from the cosmic dawn in the bulge of the Milky Way
Publisher: Springer Science and Business Media LLC
Date: 11-2015
DOI: 10.1038/NATURE15747
Abstract: The first stars are predicted to have formed within 200 million years after the Big Bang, initiating the cosmic dawn. A true first star has not yet been discovered, although stars with tiny amounts of elements heavier than helium ('metals') have been found in the outer regions ('halo') of the Milky Way. The first stars and their immediate successors should, however, preferentially be found today in the central regions ('bulges') of galaxies, because they formed in the largest over-densities that grew gravitationally with time. The Milky Way bulge underwent a rapid chemical enrichment during the first 1-2 billion years, leading to a dearth of early, metal-poor stars. Here we report observations of extremely metal-poor stars in the Milky Way bulge, including one star with an iron abundance about 10,000 times lower than the solar value without noticeable carbon enhancement. We confirm that most of the metal-poor bulge stars are on tight orbits around the Galactic Centre, rather than being halo stars passing through the bulge, as expected for stars formed at redshifts greater than 15. Their chemical compositions are in general similar to typical halo stars of the same metallicity although intriguing differences exist, including lower abundances of carbon.
The Rise Time of Nearby Type I[CLC]a[/CLC] Supernovae
Publisher: American Astronomical Society
Date: 12-1999
DOI: 10.1086/301143
SN 1991bg - A type IA supernova with a difference
Publisher: American Astronomical Society
Date: 1993
DOI: 10.1086/116427
HATS-7b: A HOT SUPER NEPTUNE TRANSITING A QUIET K DWARF STAR
Publisher: American Astronomical Society
Date: 04-11-2015
The spectroscopic diversity of Type Ia supernovae
Publisher: American Astronomical Society
Date: 16-04-2012
EVIDENCE FOR TYPE Ia SUPERNOVA DIVERSITY FROM ULTRAVIOLET OBSERVATIONS WITH THEHUBBLE SPACE TELESCOPE
Publisher: American Astronomical Society
Date: 30-03-2012
On the nature of hydrogen-rich superluminous supernovae
Publisher: Oxford University Press (OUP)
Date: 18-01-2018
Morbidity From Childhood to Adulthood. The Medical Life History of 103 Patients
Publisher: Oxford University Press (OUP)
Date: 1992
Abstract: The aim of the study was to investigate the relationship between presented morbidity in consecutive periods of time in the first 35 years of life. Data were collected in a large rural general practice from 1946 to 1990 and covered 103 persons born between 1946 and 1959 in a general practice in the east of The Netherlands. Morbidity scores were calculated for all registered diagnoses in 5-year periods. Morbidity was allocated to three degrees of seriousness, to all atopic disorders, and to eight important diagnosis groups. There were strong correlations between consecutive time periods for all but serious morbidity. The same pattern was found between 0-4 years of age and consecutive periods till the age of 20-25. After this age no significant correlations could be established. Atopic disorders were inter-related in the first 20 years of life. Strong correlations were also found for eczema and lower respiratory tract infections in the first 20 years, while strong correlations were found for accidents and nervous complaints between the ages of 20 and 35. We conclude that causes of morbidity presented in general practice in childhood and adulthood are strongly inter-related over consecutive 5-year periods.
A Spectacular Radio Flare from XRF 050416a at 40 Days and Implications for the Nature of X‐Ray Flashes
Publisher: American Astronomical Society
Date: 06-2007
DOI: 10.1086/515562
The extragalactic distance scale without Cepheids. IV.
Publisher: American Astronomical Society
Date: 06-05-2011
Preliminary Spectral Analysis of the Type II Supernova 1999em
Publisher: American Astronomical Society
Date: 10-12-2000
DOI: 10.1086/317795
Optical Spectra of Type I[CLC]a[/CLC] Supernovae at [CLC][ITAL]z[/ITAL][/CLC] = 0.46 and [CLC][ITAL]z[/ITAL][/CLC] = 1.2
Publisher: American Astronomical Society
Date: 12-2000
DOI: 10.1086/317311
Late-time spectra and type IA supernova models: New clues from the Hubble Space Telescope
Publisher: American Astronomical Society
Date: 1995
DOI: 10.1086/175151
Analysis of Type IIn SN 1998S: Effects of Circumstellar Interaction on Observed Spectra
Publisher: American Astronomical Society
Date: 20-01-2001
DOI: 10.1086/318363
A comprehensive study of GRB 070125, a most energetic gamma-ray burst
Publisher: American Astronomical Society
Date: 20-08-2008
DOI: 10.1086/589807
HATS-43b, HATS-44b, HATS-45b, and HATS-46b: Four Short-period Transiting Giant Planets in the Neptune–Jupiter Mass Range
Publisher: American Astronomical Society
Date: 13-02-2018
Finding RR lyrae stars with skymapper: An observational test
Publisher: Cambridge University Press (CUP)
Date: 2013
DOI: 10.1017/PASA.2013.28
Abstract: One of the major science goals of the SkyMapper survey of the Southern Hemisphere sky is the determination of the shape and extent of the halo of the Galaxy. In this paper, we quantify the likely efficiency and completeness of the survey as regards the detection of RR Lyrae variable stars, which are excellent tracers of the halo stellar population. We have accomplished this via observations of the RR Lyrae-rich globular cluster NGC 3201. We find that for single-epoch uvgri observations followed by two further epochs of g , r imaging, as per the intended three-epoch survey strategy, we recover known RR Lyraes with a completeness exceeding 90%. We also investigate boundaries in the gravity-sensitive single-epoch two-colour diagram that yield high completeness and high efficiency (i.e., minimal contamination by non-RR Lyraes) and the general usefulness of this diagram in separating populations.
Initial results from the Southern Edgeworth-Kuiper belt Survey
Publisher: Springer Science and Business Media LLC
Date: 06-2003
A single low-energy, iron-poor supernova as the source of metals in the star SMSS J031300.36-670839.3
Publisher: Springer Science and Business Media LLC
Date: 02-2014
DOI: 10.1038/NATURE12990
Abstract: The element abundance ratios of four low-mass stars with extremely low metallicities (abundances of elements heavier than helium) indicate that the gas out of which the stars formed was enriched in each case by at most a few--and potentially only one--low-energy supernova. Such supernovae yield large quantities of light elements such as carbon but very little iron. The dominance of low-energy supernovae seems surprising, because it had been expected that the first stars were extremely massive, and that they disintegrated in pair-instability explosions that would rapidly enrich galaxies in iron. What has remained unclear is the yield of iron from the first supernovae, because hitherto no star has been unambiguously interpreted as encapsulating the yield of a single supernova. Here we report the optical spectrum of SMSS J031300.36-670839.3, which shows no evidence of iron (with an upper limit of 10(-7.1) times solar abundance). Based on a comparison of its abundance pattern with those of models, we conclude that the star was seeded with material from a single supernova with an original mass about 60 times that of the Sun (and that the supernova left behind a black hole). Taken together with the four previously mentioned low-metallicity stars, we conclude that low-energy supernovae were common in the early Universe, and that such supernovae yielded light-element enrichment with insignificant iron. Reduced stellar feedback both chemically and mechanically from low-energy supernovae would have enabled first-generation stars to form over an extended period. We speculate that such stars may perhaps have had an important role in the epoch of cosmic reionization and the chemical evolution of early galaxies.
Related Organisations
Harvard-Smithsonian Center For Astrophysics
Location: United States of America
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