O. Schwarm

Tests of general relativity with binary black holes from the second LIGO-Virgo gravitational-wave transient catalog

R. Abbott, T. D. Abbott, S. Abraham, F. Acernese et autres

Gravitational waves enable tests of general relativity in the highly dynamical and strong-field regime. Using events detected by LIGO-Virgo up to 1 October 2019, we evaluate the consistency of the data with predictions from the theory. We first establish that residuals from …

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Population Properties of Compact Objects from the Second LIGO–Virgo Gravitational-Wave Transient Catalog

R. Abbott, T. D. Abbott, S. Abraham, F. Acernese et autres

Abstract We report on the population of 47 compact binary mergers detected with a false-alarm rate of < 1 yr − 1 in the second LIGO–Virgo Gravitational-Wave Transient Catalog. We observe several characteristics of the merging binary black hole (BBH) population not …

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Open data from the first and second observing runs of Advanced LIGO and Advanced Virgo

Rich Abbott, T. D. Abbott, Sheelu Abraham, F. Acernese et autres

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Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Fermi and Swift during the LIGO-Virgo Run O3a

R. Abbott, T. D. Abbott, S. Abraham, F Acernese et autres

We search for gravitational-wave transients associated with gamma-ray bursts (GRBs) detected by the Fermi and Swift satellites during the first part of the third observing run of Advanced LIGO and Advanced Virgo (2019 April 1 15:00 UTC-2019 October 1 15:00 UTC). A …

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Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Fermi and Swift during the LIGO-Virgo Run O3a

T. Bulik, et al, Dorota Rosinska, R. Abbott et autres

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GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run

R. Abbott, T. D. Abbott, S. Abraham, F. Acernese et autres

We report on gravitational wave discoveries from compact binary coalescences detected by Advanced LIGO and Advanced Virgo in the first half of the third observing run (O3a) between 1 April 2019 15:00 UTC and 1 October 2019 15:00. By imposing a false-alarm-rate …

GW190521: A Binary Black Hole Merger with a Total Mass of 150 M ⊙

R. Abbott, T. D. Abbott, S. Abraham, F. Acernese et autres

On May 21, 2019 at 03:02:29 UTC Advanced LIGO and Advanced Virgo observed a short duration gravitational-wave signal, GW190521, with a three-detector network signal-to-noise ratio of 14.7, and an estimated false-alarm rate of 1 in 4900 yr using a search sensitive to …

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GW190412: Observation of a binary-black-hole coalescence with asymmetric masses

R. Abbott, T. D. Abbott, S. Abraham, F. Acernese et autres

We report the observation of gravitational waves from a binary-black-hole coalescence during the first two weeks of LIGO’s and Virgo’s third observing run. The signal was recorded on April 12, 2019 at 05∶30∶44 UTC with a network signal-to-noise ratio of 19. The …

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A Joint Fermi-GBM and LIGO/Virgo Analysis of Compact Binary Mergers from the First and Second Gravitational-wave Observing Runs

R. Hamburg, C. Fletcher, Eric A. Burns, Adam M. Goldstein et autres

Abstract We present results from offline searches of Fermi Gamma-ray Burst Monitor (GBM) data for gamma-ray transients coincident with the compact binary coalescences observed by the gravitational-wave (GW) detectors Advanced LIGO and Advanced Virgo during their first and second observing runs. In …

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Gravitational-wave Constraints on the Equatorial Ellipticity of Millisecond Pulsars

R. Abbott, T. D. Abbott, S. Abraham, F. Acernese et autres

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 …

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GW190814: Gravitational Waves from the Coalescence of a 23 Solar Mass Black Hole with a 2.6 Solar Mass Compact Object

T. D. Abbott, F. Acernese, K. Ackley, C. Adams et autres

We report the observation of a compact binary coalescence involving a 22.2–24.3 M ⊙ black hole and a compact object with a mass of 2.50–2.67 M ⊙ (all measurements quoted at the 90% credible level). The gravitational-wave signal, GW190814, was observed during …

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Properties and Astrophysical Implications of the 150 M Binary Black Hole Merger GW190521

R. Abbott, T. Abbott, S. Abraham, F. Acernese et autres

The gravitational-wave signal GW190521 is consistent with a binary black hole merger source at redshift 0.8 with unusually high component masses, $85^{+21}_{-14}\\,M_{\\odot}$ and $66^{+17}_{-18}\\,M_{\\odot}$, compared to previously reported events, and shows mild evidence for spin-induced orbital precession. The primary falls in the …

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