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 ...
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...
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·...
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...
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...
Made available in DSpace on 2022-04-29T08:04:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-04-01; Albert Einstein's general theory of relativity, first published a century ago, was described by physicist Max Born as the greatest feat of human thinking about nature.We report on two major scientific breakthroughs involving key predictions of Einstein's theory: the first direct detection of gravitation...
Made available in DSpace on 2022-04-29T08:07:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-02-16; We present the results from an all-sky search for short-duration gravitational waves in the data of the first run of the Advanced LIGO detectors between September 2015 and January 2016. The search algorithms use minimal assumptions on the signal morphology, so they are sensitive to a wide range of sourc...
Made available in DSpace on 2022-04-29T08:09:45Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-07-15; Canadian Institute for Advanced Research; Centre National de la Recherche Scientifique; Instituto Nazionale di Fisica Nucleare; Ministry of Science and Technology; MPS España; National Research Foundation of Korea; Norsk Sykepleierforbund; Russian Foundation for Basic Research; Scottish Funding Council;...
Made available in DSpace on 2022-04-29T07:26:54Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-02-11; On September 14, 2015 at 09:50:45 UTC the two detectors of the Laser Interferometer Gravitational-Wave Observatory simultaneously observed a transient gravitational-wave signal. The signal sweeps upwards in frequency from 35 to 250 Hz with a peak gravitational-wave strain of 1.0×10-21. It matches the wa...
Made available in DSpace on 2018-11-26T17:45:14Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-03-22; Australian Research Council; Council of Scientific and Industrial Research of India; Department of Science and Technology, India; Science AMP; Engineering Research Board (SERB), India; Ministry of Human Resource Development, India; Spanish Agencia Estatal de Investigacion; Vicepresidencia i Conselleria ...