ORCID Profile
0000-0003-3718-4491
Current Organisations
Radboud University Nijmegen
,
Universiteit Utrecht
,
Deutsches Zentrum für Luft- und Raumfahrt DLR Standort Hamburg
,
Leibniz Universität Hannover
,
Universitas Katolik Parahyangan
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Publications
Search for continuous gravitational waves from 20 accreting millisecond x-ray pulsars in O3 LIGO data
Publisher: American Physical Society (APS)
Date: 19-01-2022
Upper limits on the isotropic gravitational-wave background from Advanced LIGO and Advanced Virgo’s third observing run
Publisher: American Physical Society (APS)
Date: 23-07-2021
Constraints on Cosmic Strings Using Data from the Third Advanced LIGO–Virgo Observing Run
Publisher: American Physical Society (APS)
Date: 16-06-2021
All-sky search for long-duration gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run
Publisher: American Physical Society (APS)
Date: 11-11-2021
Search for anisotropic gravitational-wave backgrounds using data from Advanced LIGO and Advanced Virgo’s first three observing runs
Publisher: American Physical Society (APS)
Date: 27-07-2021
All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in LIGO O3 data
Publisher: American Physical Society (APS)
Date: 09-05-2022
Gravitational-wave Constraints on the Equatorial Ellipticity of Millisecond Pulsars
Publisher: American Astronomical Society
Date: 10-2020
Abstract: We present a search for continuous gravitational waves from five radio pulsars, comprising three recycled pulsars (PSR J0437−4715, PSR J0711−6830, and PSR J0737−3039A) and two young pulsars: the Crab pulsar (J0534+2200) and the Vela pulsar (J0835−4510). We use data from the third observing run of Advanced LIGO and Virgo combined with data from their first and second observing runs. For the first time, we are able to match (for PSR J0437−4715) or surpass (for PSR J0711−6830) the indirect limits on gravitational-wave emission from recycled pulsars inferred from their observed spin-downs, and constrain their equatorial ellipticities to be less than 10 −8 . For each of the five pulsars, we perform targeted searches that assume a tight coupling between the gravitational-wave and electromagnetic signal phase evolution. We also present constraints on PSR J0711−6830, the Crab pulsar, and the Vela pulsar from a search that relaxes this assumption, allowing the gravitational-wave signal to vary from the electromagnetic expectation within a narrow band of frequencies and frequency derivatives.
All-sky search for continuous gravitational waves from isolated neutron stars in the early O3 LIGO data
Publisher: American Physical Society (APS)
Date: 08-10-2021
Search of the early O3 LIGO data for continuous gravitational waves from the Cassiopeia A and Vela Jr. supernova remnants
Publisher: American Physical Society (APS)
Date: 28-04-2022
All-sky search in early O3 LIGO data for continuous gravitational-wave signals from unknown neutron stars in binary systems
Publisher: American Physical Society (APS)
Date: 12-03-2021
GW190521: A Binary Black Hole Merger with a Total Mass of
150 <
Publisher: American Physical Society (APS)
Date: 02-09-2020
All-sky search for short gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run
Publisher: American Physical Society (APS)
Date: 23-12-2021
Tests of general relativity with binary black holes from the second LIGO-Virgo gravitational-wave transient catalog
Publisher: American Physical Society (APS)
Date: 15-06-2021
A Gravitational-wave Measurement of the Hubble Constant Following the Second Observing Run of Advanced LIGO and Virgo
Publisher: American Astronomical Society
Date: 03-2021
Abstract: This paper presents the gravitational-wave measurement of the Hubble constant ( H 0 ) using the detections from the first and second observing runs of the Advanced LIGO and Virgo detector network. The presence of the transient electromagnetic counterpart of the binary neutron star GW170817 led to the first standard-siren measurement of H 0 . Here we additionally use binary black hole detections in conjunction with galaxy catalogs and report a joint measurement. Our updated measurement is H 0 = 69 − 8 + 16 km s −1 Mpc −1 (68.3% of the highest density posterior interval with a flat-in-log prior) which is an improvement by a factor of 1.04 (about 4%) over the GW170817-only value of 69 − 8 + 17 km s −1 Mpc −1 . A significant additional contribution currently comes from GW170814, a loud and well-localized detection from a part of the sky thoroughly covered by the Dark Energy Survey. With numerous detections anticipated over the upcoming years, an exhaustive understanding of other systematic effects are also going to become increasingly important. These results establish the path to cosmology using gravitational-wave observations with and without transient electromagnetic counterparts.
Tests of general relativity with the binary black hole signals from the LIGO-Virgo catalog GWTC-1
Publisher: American Physical Society (APS)
Date: 20-11-2019
GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo during the First Half of the Third Observing Run
Publisher: American Physical Society (APS)
Date: 09-06-2021
Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Fermi and Swift during the LIGO–Virgo Run O3b
Publisher: American Astronomical Society
Date: 04-2022
Abstract: We search for gravitational-wave signals associated with gamma-ray bursts (GRBs) detected by the Fermi and Swift satellites during the second half of the third observing run of Advanced LIGO and Advanced Virgo (2019 November 1 15:00 UTC–2020 March 27 17:00 UTC). We conduct two independent searches: a generic gravitational-wave transients search to analyze 86 GRBs and an analysis to target binary mergers with at least one neutron star as short GRB progenitors for 17 events. We find no significant evidence for gravitational-wave signals associated with any of these GRBs. A weighted binomial test of the combined results finds no evidence for subthreshold gravitational-wave signals associated with this GRB ensemble either. We use several source types and signal morphologies during the searches, resulting in lower bounds on the estimated distance to each GRB. Finally, we constrain the population of low-luminosity short GRBs using results from the first to the third observing runs of Advanced LIGO and Advanced Virgo. The resulting population is in accordance with the local binary neutron star merger rate.
Open data from the first and second observing runs of Advanced LIGO and Advanced Virgo
Publisher: Elsevier BV
Date: 2021
Observation of Gravitational Waves from Two Neutron Star–Black Hole Coalescences
Publisher: American Astronomical Society
Date: 29-06-2021
Abstract: We report the observation of gravitational waves from two compact binary coalescences in LIGO’s and Virgo’s third observing run with properties consistent with neutron star–black hole (NSBH) binaries. The two events are named GW200105_162426 and GW200115_042309, abbreviated as GW200105 and GW200115 the first was observed by LIGO Livingston and Virgo and the second by all three LIGO–Virgo detectors. The source of GW200105 has component masses 8 . 9 − 1 . 5 + 1. 2 and 1. 9 − 0. 2 + 0. 3 M ⊙ , whereas the source of GW200115 has component masses 5. 7 − 2 . 1 + 1. 8 and 1. 5 − 0. 3 + 0. 7 M ⊙ (all measurements quoted at the 90% credible level). The probability that the secondary’s mass is below the maximal mass of a neutron star is 89%–96% and 87%–98%, respectively, for GW200105 and GW200115, with the ranges arising from different astrophysical assumptions. The source luminosity distances are 280 − 110 + 110 and 300 − 100 + 150 Mpc , respectively. The magnitude of the primary spin of GW200105 is less than 0.23 at the 90% credible level, and its orientation is unconstrained. For GW200115, the primary spin has a negative spin projection onto the orbital angular momentum at 88% probability. We are unable to constrain the spin or tidal deformation of the secondary component for either event. We infer an NSBH merger rate density of 45 − 33 + 75 Gpc − 3 yr − 1 when assuming that GW200105 and GW200115 are representative of the NSBH population or 130 − 69 + 112 Gpc − 3 yr − 1 under the assumption of a broader distribution of component masses.
Related Organisations
Deutsches Zentrum Für Luft- Und Raumfahrt DLR Standort Hamburg
Location: Germany
Leibniz Universität Hannover Fakultät Für Mathematik Und Physik
Location: Germany
Related Funding Activities
No related grants have been discovered for Yoshinta Eka Setyawati.