Directed search for gravitational waves from Scorpius X-1 with initial LIGO data

Autores
Aasi, J.; Abbott, B. P.; Abbott, R.; Abbott, T.; Abernathy, M. R.; Acernese, F.; Domínguez, Alfredo Eduardo; Maglione, César Germán; Ortega Larcher, Walter Emanuel; Quiroga, Gonzalo Damián; Reula, Oscar Alejandro
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Domínguez, Alfredo Eduardo. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Domínguez, Alfredo Eduardo. Argentinian Gravitational Wave Group; Argentina.
Fil: Maglione, César Germán. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Maglione, César Germán. Argentinian Gravitational Wave Group; Argentina.
Fil: Ortega Larcher, Walter Emanuel. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Ortega Larcher, Walter Emanuel. Argentinian Gravitational Wave Group; Argentina.
Fil: Quiroga, Gonzalo Damián. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Quiroga, Gonzalo Damián. Argentinian Gravitational Wave Group; Argentina.
Fil: Reula, Oscar Alejandro. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Reula, Oscar Alejandro. Argentinian Gravitational Wave Group; Argentina.
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.
publishedVersion
Fil: Domínguez, Alfredo Eduardo. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Domínguez, Alfredo Eduardo. Argentinian Gravitational Wave Group; Argentina.
Fil: Maglione, César Germán. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Maglione, César Germán. Argentinian Gravitational Wave Group; Argentina.
Fil: Ortega Larcher, Walter Emanuel. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Ortega Larcher, Walter Emanuel. Argentinian Gravitational Wave Group; Argentina.
Fil: Quiroga, Gonzalo Damián. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Quiroga, Gonzalo Damián. Argentinian Gravitational Wave Group; Argentina.
Fil: Reula, Oscar Alejandro. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Reula, Oscar Alejandro. Argentinian Gravitational Wave Group; Argentina.
Otras Ciencias Físicas
Fuente
e-ISSN: 2470-0029
Materia
Gravitational waves
Neutron stars
X-ray binaries
General Relativity and Quantum Cosmology
Astrophysics
High Energy Astrophysical Phenomena
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Repositorio
Repositorio Digital Universitario (UNC)
Institución
Universidad Nacional de Córdoba
OAI Identificador
oai:rdu.unc.edu.ar:11086/29514
Acceder
id RDUUNC_8355980635c9d698e3b40b1cb044f913
oai_identifier_str oai:rdu.unc.edu.ar:11086/29514
network_acronym_str RDUUNC
repository_id_str 2572
network_name_str Repositorio Digital Universitario (UNC)
spelling Directed search for gravitational waves from Scorpius X-1 with initial LIGO dataAasi, J.Abbott, B. P.Abbott, R.Abbott, T.Abernathy, M. R.Acernese, F.Domínguez, Alfredo EduardoMaglione, César GermánOrtega Larcher, Walter EmanuelQuiroga, Gonzalo DamiánReula, Oscar AlejandroGravitational wavesNeutron starsX-ray binariesGeneral Relativity and Quantum CosmologyAstrophysicsHigh Energy Astrophysical PhenomenaFil: Domínguez, Alfredo Eduardo. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Domínguez, Alfredo Eduardo. Argentinian Gravitational Wave Group; Argentina.Fil: Maglione, César Germán. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Maglione, César Germán. Argentinian Gravitational Wave Group; Argentina.Fil: Ortega Larcher, Walter Emanuel. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Ortega Larcher, Walter Emanuel. Argentinian Gravitational Wave Group; Argentina.Fil: Quiroga, Gonzalo Damián. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Quiroga, Gonzalo Damián. Argentinian Gravitational Wave Group; Argentina.Fil: Reula, Oscar Alejandro. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Reula, Oscar Alejandro. Argentinian Gravitational Wave Group; Argentina.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.publishedVersionFil: Domínguez, Alfredo Eduardo. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Domínguez, Alfredo Eduardo. Argentinian Gravitational Wave Group; Argentina.Fil: Maglione, César Germán. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Maglione, César Germán. Argentinian Gravitational Wave Group; Argentina.Fil: Ortega Larcher, Walter Emanuel. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Ortega Larcher, Walter Emanuel. Argentinian Gravitational Wave Group; Argentina.Fil: Quiroga, Gonzalo Damián. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Quiroga, Gonzalo Damián. Argentinian Gravitational Wave Group; Argentina.Fil: Reula, Oscar Alejandro. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Reula, Oscar Alejandro. Argentinian Gravitational Wave Group; Argentina.Otras Ciencias Físicas2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/11086/29514https://doi.org/10.1103/PhysRevD.91.062008e-ISSN: 2470-0029reponame:Repositorio Digital Universitario (UNC)instname:Universidad Nacional de Córdobainstacron:UNCenginfo:eu-repo/semantics/openAccess2025-10-30T11:22:19Zoai:rdu.unc.edu.ar:11086/29514Institucionalhttps://rdu.unc.edu.ar/Universidad públicaNo correspondehttp://rdu.unc.edu.ar/oai/snrdoca.unc@gmail.comArgentinaNo correspondeNo correspondeNo correspondeopendoar:25722025-10-30 11:22:20.154Repositorio Digital Universitario (UNC) - Universidad Nacional de Córdobafalse
dc.title.none.fl_str_mv Directed search for gravitational waves from Scorpius X-1 with initial LIGO data
title Directed search for gravitational waves from Scorpius X-1 with initial LIGO data
spellingShingle Directed search for gravitational waves from Scorpius X-1 with initial LIGO data
Aasi, J.
Gravitational waves
Neutron stars
X-ray binaries
General Relativity and Quantum Cosmology
Astrophysics
High Energy Astrophysical Phenomena
title_short Directed search for gravitational waves from Scorpius X-1 with initial LIGO data
title_full Directed search for gravitational waves from Scorpius X-1 with initial LIGO data
title_fullStr Directed search for gravitational waves from Scorpius X-1 with initial LIGO data
title_full_unstemmed Directed search for gravitational waves from Scorpius X-1 with initial LIGO data
title_sort Directed search for gravitational waves from Scorpius X-1 with initial LIGO data
dc.creator.none.fl_str_mv Aasi, J.
Abbott, B. P.
Abbott, R.
Abbott, T.
Abernathy, M. R.
Acernese, F.
Domínguez, Alfredo Eduardo
Maglione, César Germán
Ortega Larcher, Walter Emanuel
Quiroga, Gonzalo Damián
Reula, Oscar Alejandro
author Aasi, J.
author_facet Aasi, J.
Abbott, B. P.
Abbott, R.
Abbott, T.
Abernathy, M. R.
Acernese, F.
Domínguez, Alfredo Eduardo
Maglione, César Germán
Ortega Larcher, Walter Emanuel
Quiroga, Gonzalo Damián
Reula, Oscar Alejandro
author_role author
author2 Abbott, B. P.
Abbott, R.
Abbott, T.
Abernathy, M. R.
Acernese, F.
Domínguez, Alfredo Eduardo
Maglione, César Germán
Ortega Larcher, Walter Emanuel
Quiroga, Gonzalo Damián
Reula, Oscar Alejandro
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Gravitational waves
Neutron stars
X-ray binaries
General Relativity and Quantum Cosmology
Astrophysics
High Energy Astrophysical Phenomena
topic Gravitational waves
Neutron stars
X-ray binaries
General Relativity and Quantum Cosmology
Astrophysics
High Energy Astrophysical Phenomena
dc.description.none.fl_txt_mv Fil: Domínguez, Alfredo Eduardo. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Domínguez, Alfredo Eduardo. Argentinian Gravitational Wave Group; Argentina.
Fil: Maglione, César Germán. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Maglione, César Germán. Argentinian Gravitational Wave Group; Argentina.
Fil: Ortega Larcher, Walter Emanuel. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Ortega Larcher, Walter Emanuel. Argentinian Gravitational Wave Group; Argentina.
Fil: Quiroga, Gonzalo Damián. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Quiroga, Gonzalo Damián. Argentinian Gravitational Wave Group; Argentina.
Fil: Reula, Oscar Alejandro. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Reula, Oscar Alejandro. Argentinian Gravitational Wave Group; Argentina.
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.
publishedVersion
Fil: Domínguez, Alfredo Eduardo. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Domínguez, Alfredo Eduardo. Argentinian Gravitational Wave Group; Argentina.
Fil: Maglione, César Germán. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Maglione, César Germán. Argentinian Gravitational Wave Group; Argentina.
Fil: Ortega Larcher, Walter Emanuel. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Ortega Larcher, Walter Emanuel. Argentinian Gravitational Wave Group; Argentina.
Fil: Quiroga, Gonzalo Damián. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Quiroga, Gonzalo Damián. Argentinian Gravitational Wave Group; Argentina.
Fil: Reula, Oscar Alejandro. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Reula, Oscar Alejandro. Argentinian Gravitational Wave Group; Argentina.
Otras Ciencias Físicas
description Fil: Domínguez, Alfredo Eduardo. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11086/29514
https://doi.org/10.1103/PhysRevD.91.062008
url http://hdl.handle.net/11086/29514
https://doi.org/10.1103/PhysRevD.91.062008
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv e-ISSN: 2470-0029
reponame:Repositorio Digital Universitario (UNC)
instname:Universidad Nacional de Córdoba
instacron:UNC
reponame_str Repositorio Digital Universitario (UNC)
collection Repositorio Digital Universitario (UNC)
instname_str Universidad Nacional de Córdoba
instacron_str UNC
institution UNC
repository.name.fl_str_mv Repositorio Digital Universitario (UNC) - Universidad Nacional de Córdoba
repository.mail.fl_str_mv oca.unc@gmail.com
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score 13.10058

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