New Dimensions in Radio Astronomy: Mining Sparse Datasets with the Australian Square Kilometre Array Pathfinder. Radio astronomy is entering a new era, driven by technological advances that make rapid surveys of the sky possible. As leaders of three major surveys for the Australian Square Kilometre Array Pathfinder (ASKAP) telescope, we will explore three new dimensions of astronomy: searching for transient sources, detecting faint galaxies and investigating cosmic magnetism. The project will pu ....New Dimensions in Radio Astronomy: Mining Sparse Datasets with the Australian Square Kilometre Array Pathfinder. Radio astronomy is entering a new era, driven by technological advances that make rapid surveys of the sky possible. As leaders of three major surveys for the Australian Square Kilometre Array Pathfinder (ASKAP) telescope, we will explore three new dimensions of astronomy: searching for transient sources, detecting faint galaxies and investigating cosmic magnetism. The project will put Australian astronomers at the forefront of international research. In addition to novel scientific results we will produce data resources and software that will be critical for future Square Kilometre Array projects. These will be available online to amateur astronomers and the general public. We will train the next generation of astronomers with the skills required to make breakthrough discoveries.Read moreRead less
Probing dark matter through the small scale structure of the universe. This project aims to discover clues to the nature of dark matter buried in small-scale structures. Although observational probes reliably constrain these systems, theoretical progress is hampered by difficulties disentangling the complex baryonic physics from the micro-physics of the dark matter particle in shaping the structure of low-mass galaxies. The project will tackle this problem using sophisticated numerical simulatio ....Probing dark matter through the small scale structure of the universe. This project aims to discover clues to the nature of dark matter buried in small-scale structures. Although observational probes reliably constrain these systems, theoretical progress is hampered by difficulties disentangling the complex baryonic physics from the micro-physics of the dark matter particle in shaping the structure of low-mass galaxies. The project will tackle this problem using sophisticated numerical simulations which separate these effects, allowing them to be isolated. The results are expected to show how low-mass galaxy formed, and to have important implications for modelling dark matter annihilation and for interpreting data from forthcoming surveys.Read moreRead less
Unveiling the haloes of Andromeda and the Milky Way. This project aims to understand galaxy formation and the astrophysical properties of dark matter. Continual merging with smaller systems powers the development of large galaxies. The ghostly remnants of these cannibalised satellites encode the build-up of mass in a galaxy and trace the underlying gravitational field. This project will use astronomical imaging technology to study ultra-faint stellar streams in the outskirts of our Milky Way and ....Unveiling the haloes of Andromeda and the Milky Way. This project aims to understand galaxy formation and the astrophysical properties of dark matter. Continual merging with smaller systems powers the development of large galaxies. The ghostly remnants of these cannibalised satellites encode the build-up of mass in a galaxy and trace the underlying gravitational field. This project will use astronomical imaging technology to study ultra-faint stellar streams in the outskirts of our Milky Way and its twin sister Andromeda, revealing their assembly histories and the precise properties of their dark matter haloes. These quantities are fundamental experimental benchmarks for testing modern cosmological models.Read moreRead less
eXtending the GLEAM view of the Universe. This project will explore the entire radio sky visible to the future Square Kilometre Array ten times more deeply than before, fully characterising the life cycles of active galactic nuclei and finding previously-undetected supernova remnants in the Galactic Plane. The resulting survey will be used for a plethora of science, such as studies of galaxy clusters, cosmic ray tomography of the Milky Way, and measuring the magnetic fields of radio galaxy lobes ....eXtending the GLEAM view of the Universe. This project will explore the entire radio sky visible to the future Square Kilometre Array ten times more deeply than before, fully characterising the life cycles of active galactic nuclei and finding previously-undetected supernova remnants in the Galactic Plane. The resulting survey will be used for a plethora of science, such as studies of galaxy clusters, cosmic ray tomography of the Milky Way, and measuring the magnetic fields of radio galaxy lobes. It is a critical step toward the Square Kilometre Array.Read moreRead less
Geophysical, Galactic, and Extra-Galactic Science with the AuScope and Australian Pathfinder Arrays. Two new radio telescope arrays are under construction in Australia. One is the Australian Square Kilometre Array Pathfinder, near Geraldton. The other is a very long baseline array with antennae near Hobart, Katherine, and Yarragadee. These three antennae work together to observe radio sources far away across the universe. Their observations are used to establish a very accurate coordinate syste ....Geophysical, Galactic, and Extra-Galactic Science with the AuScope and Australian Pathfinder Arrays. Two new radio telescope arrays are under construction in Australia. One is the Australian Square Kilometre Array Pathfinder, near Geraldton. The other is a very long baseline array with antennae near Hobart, Katherine, and Yarragadee. These three antennae work together to observe radio sources far away across the universe. Their observations are used to establish a very accurate coordinate system or reference frame on the earth, to which the global positioning system is aligned. This program will use these new radio telescope arrays to study the Milky Way and other galaxies, and to study continental drift and sea-level rise on the Earth.Read moreRead less
Feeding the faintest black holes: the nature of low-luminosity accretion. The overwhelming majority of black holes are found in an extremely faint quiescent state. This project aims to improve understandings of this large population of black holes, determining the geometry of the inflowing gas, the source of the faint X-ray emission, and the fraction of energy pumped outwards in fast-moving jets. Building on recent ground-breaking results, this project aims to conduct a survey to detect a new po ....Feeding the faintest black holes: the nature of low-luminosity accretion. The overwhelming majority of black holes are found in an extremely faint quiescent state. This project aims to improve understandings of this large population of black holes, determining the geometry of the inflowing gas, the source of the faint X-ray emission, and the fraction of energy pumped outwards in fast-moving jets. Building on recent ground-breaking results, this project aims to conduct a survey to detect a new population of black holes in dense star clusters, providing new laboratories to explore accretion physics. It aims to measure the distances of the black holes and their motion through space, test evidence for the existence of event horizons, and provide new insights into how black holes form and how they affect their surroundings.Read moreRead less
Testing pulsar emission models and general relativity at pico arcsecond resolution. A holographic technique has been pioneered that harnesses scattering in interstellar space to resolve the emission from pulsars at a resolution of 50 pico-arcseconds, six orders of magnitude finer than has been achieved by conventional radio astronomical interferometry. This project will directly measure the size of the emission regions in a set of pulsars, and hence resolve the 40-year old debate regarding the s ....Testing pulsar emission models and general relativity at pico arcsecond resolution. A holographic technique has been pioneered that harnesses scattering in interstellar space to resolve the emission from pulsars at a resolution of 50 pico-arcseconds, six orders of magnitude finer than has been achieved by conventional radio astronomical interferometry. This project will directly measure the size of the emission regions in a set of pulsars, and hence resolve the 40-year old debate regarding the site of their radio emission. The project will also apply the technique to binary pulsar systems to provide a new test of General Relativity.Read moreRead less
The origin and nature of relativistic jets in X-ray binaries. This project uses Australia's world-class radio telescopes together with space-based X-ray telescopes to find out how and why black holes accelerate matter outwards in powerful, narrow beams moving close to the speed of light. The project will measure the enormous energy carried by these beams and how they collide with and deform the surrounding gas.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE140100052
Funder
Australian Research Council
Funding Amount
$350,000.00
Summary
TAIPAN - a spectrograph to survey the southern sky. TAIPAN - a spectrograph to survey the southern sky: The TAIPAN spectroscopic survey of the southern sky aims to quadruple the number of nearby galaxies with measured redshifts, distances and velocities. Science goals include measuring the expansion rate of the universe to 1 per cent precision, and combining optical spectroscopy and radio data for each galaxy to measure the rate at which gas is being converted into stars in the local universe. T ....TAIPAN - a spectrograph to survey the southern sky. TAIPAN - a spectrograph to survey the southern sky: The TAIPAN spectroscopic survey of the southern sky aims to quadruple the number of nearby galaxies with measured redshifts, distances and velocities. Science goals include measuring the expansion rate of the universe to 1 per cent precision, and combining optical spectroscopy and radio data for each galaxy to measure the rate at which gas is being converted into stars in the local universe. This project supports construction of the TAIPAN high-performance spectrograph that will be used to carry out the survey on the UK Schmidt Telescope (UKST). The results of the survey will be made freely available to all Australian astronomers.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE130100104
Funder
Australian Research Council
Funding Amount
$740,000.00
Summary
Mapping the universe with the Panoramic Survey Telescope and Rapid Response System (PanSTARRS). This project plans to build a powerful new observatory, Panoramic Survey Telescope and Rapid Response System (PanSTARRS-2), to be located in Hawaii. PanSTARRS-2 will have an enormous fish-eye-lens view of the northern stars, which we will combine with Australian telescopes to give a unique view of the entire sky. Australian scientists will use this data to solve fundamental problems in astrophysics an ....Mapping the universe with the Panoramic Survey Telescope and Rapid Response System (PanSTARRS). This project plans to build a powerful new observatory, Panoramic Survey Telescope and Rapid Response System (PanSTARRS-2), to be located in Hawaii. PanSTARRS-2 will have an enormous fish-eye-lens view of the northern stars, which we will combine with Australian telescopes to give a unique view of the entire sky. Australian scientists will use this data to solve fundamental problems in astrophysics and cosmology.Read moreRead less