dc.contributor.author | Aasi, J. | |
dc.contributor.author | Abbott, B. P. | |
dc.contributor.author | Abbott, R. | |
dc.contributor.author | Abbott, T. | |
dc.contributor.author | Abernathy, M. R. | |
dc.contributor.author | Acernese, F. | |
dc.contributor.author | Domínguez, Alfredo Eduardo | |
dc.contributor.author | Maglione, César Germán | |
dc.contributor.author | Ortega Larcher, Walter Emanuel | |
dc.contributor.author | Quiroga, Gonzalo Damián | |
dc.contributor.author | Reula, Oscar Alejandro | |
dc.date.accessioned | 2022-11-09T13:05:27Z | |
dc.date.available | 2022-11-09T13:05:27Z | |
dc.date.issued | 2015 | |
dc.identifier.uri | http://hdl.handle.net/11086/29514 | |
dc.description.abstract | We present results of a search for continuously emitted gravitational radiation, directed at the brightest low-mass x-ray binary, Scorpius X-1. Our semicoherent analysis covers 10 days of LIGO S5 data ranging from 50–550 Hz, and performs an incoherent sum of coherent F -statistic power distributed amongst frequency-modulated orbital sidebands. All candidates not removed at the veto stage were found to be consistent with noise at a 1% false alarm rate. We present Bayesian 95% confidence upper limits on gravitational-wave strain amplitude using two different prior distributions: a standard one, with no a priori assumptions about the orientation of Scorpius X-1; and an angle-restricted one, using a prior derived from electromagnetic observations. Median strain upper limits of 1.3 × 10−24 and 8 × 10−25 are reported at 150 Hz for the standard and angle-restricted searches respectively. This proof-of-principle analysis was limited to a short observation time by unknown effects of accretion on the intrinsic spin frequency of the neutron star, but improves upon previous upper limits by factors of ∼1.4 for the standard, and 2.3 for the angle-restricted search at the sensitive region of the detector. | en |
dc.format.medium | Electrónico y/o Digital | |
dc.language.iso | eng | es |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.source | e-ISSN: 2470-0029 | |
dc.subject | Gravitational waves | en |
dc.subject | Neutron stars | en |
dc.subject | X-ray binaries | en |
dc.subject | General Relativity and Quantum Cosmology | en |
dc.subject | Astrophysics | en |
dc.subject | High Energy Astrophysical Phenomena | en |
dc.title | Directed search for gravitational waves from Scorpius X-1 with initial LIGO data | en |
dc.type | article | es |
dc.description.version | publishedVersion | es |
dc.description.fil | Fil: Domínguez, Alfredo Eduardo. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. | es |
dc.description.fil | Fil: Domínguez, Alfredo Eduardo. Argentinian Gravitational Wave Group; Argentina. | es |
dc.description.fil | Fil: Maglione, César Germán. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. | es |
dc.description.fil | Fil: Maglione, César Germán. Argentinian Gravitational Wave Group; Argentina. | es |
dc.description.fil | Fil: Ortega Larcher, Walter Emanuel. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. | es |
dc.description.fil | Fil: Ortega Larcher, Walter Emanuel. Argentinian Gravitational Wave Group; Argentina. | es |
dc.description.fil | Fil: Quiroga, Gonzalo Damián. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. | es |
dc.description.fil | Fil: Quiroga, Gonzalo Damián. Argentinian Gravitational Wave Group; Argentina. | es |
dc.description.fil | Fil: Reula, Oscar Alejandro. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. | es |
dc.description.fil | Fil: Reula, Oscar Alejandro. Argentinian Gravitational Wave Group; Argentina. | es |
dc.journal.country | Estados Unidos | es |
dc.journal.editorial | American Physical Society | en |
dc.journal.number | 6 | es |
dc.journal.referato | Con referato | |
dc.journal.title | Physical Review D | en |
dc.journal.volume | 91 | es |
dc.description.field | Otras Ciencias Físicas | |
dc.identifier.doi | https://doi.org/10.1103/PhysRevD.91.062008 | |