36 documents found, page 1 of 4
Tests of General Relativity with GW150914
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.Made available in DSpace on 2022-04-29T07:35:51Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-05-31; Science and Technology Facilities Council; The LIGO detection of GW150914 provides an unprecedented opportunity to study the two-body motion of a compact-object binary in the large-velocity, highly nonlinear regime, and to witness the final merger of the binary and the excitation of uniquely relativisti...
Properties of the Binary Black Hole Merger GW150914
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.Made available in DSpace on 2022-04-29T07:40:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-06-14; On September 14, 2015, the Laser Interferometer Gravitational-Wave Observatory (LIGO) detected a gravitational-wave transient (GW150914); we characterize the properties of the source and its parameters. The data around the time of the event were analyzed coherently across the LIGO network using a suite ...
GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black ...
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.Made available in DSpace on 2022-04-29T07:42:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-06-15; We report the observation of a gravitational-wave signal produced by the coalescence of two stellar-mass black holes. The signal, GW151226, was observed by the twin detectors of the Laser Interferometer Gravitational-Wave Observatory (LIGO) on December 26, 2015 at 03:38:53 UTC. The signal was initially ...
Comprehensive all-sky search for periodic gravitational waves in the sixth scie...
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.Made available in DSpace on 2022-04-29T07:50:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-08-15; Science and Technology Facilities Council; We report on a comprehensive all-sky search for periodic gravitational waves in the frequency band 100-1500 Hz and with a frequency time derivative in the range of [-1.18,+1.00]×10-8 Hz/s. Such a signal could be produced by a nearby spinning and slightly nonaxi...
Directly comparing GW150914 with numerical solutions of Einstein's equations fo...
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.Made available in DSpace on 2022-04-29T07:52:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-09-14; We compare GW150914 directly to simulations of coalescing binary black holes in full general relativity, including several performed specifically to reproduce this event. Our calculations go beyond existing semianalytic models, because for all simulations - including sources with two independent, preces...
Improved analysis of GW150914 using a fully spin-precessing waveform model
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.Made available in DSpace on 2022-04-29T07:53:48Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-01-01; This paper presents updated estimates of source parameters for GW150914, a binary black-hole coalescence event detected by the Laser Interferometer Gravitational-wave Observatory (LIGO) in 2015 [Abbott et al. Phys. Rev. Lett. 116, 061102 (2016).]. Abbott et al. [Phys. Rev. Lett. 116, 241102 (2016).] pre...
Results of the deepest all-sky survey for continuous gravitational waves on LIG...
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.Made available in DSpace on 2022-04-29T07:57:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-11-18; We report results of a deep all-sky search for periodic gravitational waves from isolated neutron stars in data from the S6 LIGO science run. The search was possible thanks to the computing power provided by the volunteers of the Einstein@Home distributed computing project. We find no significant signal...
Binary Black Hole Mergers in the First Advanced LIGO Observing Run
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.Made available in DSpace on 2022-04-29T07:58:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-01-01; The first observational run of the Advanced LIGO detectors, from September 12, 2015 to January 19, 2016, saw the first detections of gravitational waves from binary black hole mergers. In this paper, we present full results from a search for binary black hole merger signals with total masses up to 100M·...
Directional Limits on Persistent Gravitational Waves from Advanced LIGO's First...
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.Made available in DSpace on 2022-04-29T08:00:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-03-24; We employ gravitational-wave radiometry to map the stochastic gravitational wave background expected from a variety of contributing mechanisms and test the assumption of isotropy using data from the Advanced Laser Interferometer Gravitational Wave Observatory's (aLIGO) first observing run. We also searc...
Upper Limits on the Stochastic Gravitational-Wave Background from Advanced LIGO...
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.Made available in DSpace on 2022-04-29T08:02:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-03-24; A wide variety of astrophysical and cosmological sources are expected to contribute to a stochastic gravitational-wave background. Following the observations of GW150914 and GW151226, the rate and mass of coalescing binary black holes appear to be greater than many previous expectations. As a result, th...