21 documents found, page 1 of 3
Search of the Orion spur for continuous gravitational waves using a loosely coh...
Aasi, J.; Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.Made available in DSpace on 2022-04-29T07:30:02Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-02-17; National Science Foundation; We report results of a wideband search for periodic gravitational waves from isolated neutron stars within the Orion spur towards both the inner and outer regions of our Galaxy. As gravitational waves interact very weakly with matter, the search is unimpeded by dust and conc...
First low frequency all-sky search for continuous gravitational wave signals
Aasi, J.; Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.Made available in DSpace on 2022-04-29T07:31:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-02-25; In this paper we present the results of the first low frequency all-sky search of continuous gravitational wave signals conducted on Virgo VSR2 and VSR4 data. The search covered the full sky, a frequency range between 20 and 128 Hz with a range of spin-down between -1.0×10-10 and +1.5×10-11 Hz/s, and wa...
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·...
Search for continuous gravitational waves from neutron stars in globular cluste...
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 2022-04-29T08:05:46Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-04-19; We describe a directed search for continuous gravitational waves in data from the sixth initial LIGO science run. The target was the nearby globular cluster NGC 6544 at a distance of ≈2.7 kpc. The search covered a broad band of frequencies along with first and second frequency derivatives for a fixed sk...
Effects of data quality vetoes on a search for compact binary coalescences in A...
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 2018-11-26T17:46:47Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-03-22; Australian Research Council; EGO consortium; Council of Scientific and Industrial Research of India; Department of Science and Technology, India; Science & Engineering Research Board (SERB), India; Ministry of Human Resource Development, India; Spanish Agencia Estatal de Investigacion; Vicepresidencia i...