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
- Institución
- Universidad Nacional de Córdoba
- OAI Identificador
- oai:rdu.unc.edu.ar:11086/29514
Ver los metadatos del registro completo
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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/openAccess2025-09-29T13:43:41Zoai: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:25722025-09-29 13:43:41.756Repositorio 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 |
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Repositorio Digital Universitario (UNC) |
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Repositorio Digital Universitario (UNC) |
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Universidad Nacional de Córdoba |
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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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