Investigation into the reflection properties of the neutron star low-mass X-ray binary 4U 1636–53

Autores
Lyu, M.; Zhang, G. B.; Wang, H. G.; García, Federico
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the spectroscopy of the neutron star low-mass X-ray binary 4U 1636-53 using six simultaneous XMM-Newton and Rossi X-ray Timing Explorer observations. We applied different self-consistent reflection models to explore the features when the disk is illuminated by either the corona or the neutron star surface. We found that the spectra could be well fitted by these two types of models, with the derived emissivity index below a typical value of 3. The relative low emissivity can be explained if the neutron star and the corona, working together as an extended illuminator, simultaneously illuminate and ionize the disk. Additionally, the derived ionization parameter in the lamppost geometry is larger than the theoretical prediction. This inconsistency likely suggests that the corona does not emit isotropically in a realistic context. Furthermore, we also found that there is a possible trend between the height of the corona and the normalization of the disk emission. This could be understood either as a variation in the reflected radiation pressure or in the context of a jet base. Finally, we found that the disk is less ionized if it is illuminated by the neutron star, indicating that the illuminating source has significant influence on the physical properties of the disk.
Fil: Lyu, M.. Xiangtan University; China
Fil: Zhang, G. B.. Chinese Academy of Sciences; República de China
Fil: Wang, H. G.. Guangzhou University; China
Fil: García, Federico. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Materia
ACCRETION
ACCRETION DISKS
STARS: NEUTRON
TECHNIQUES: SPECTROSCOPIC
X-RAYS: BINARIES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/231215
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Investigation into the reflection properties of the neutron star low-mass X-ray binary 4U 1636–53Lyu, M.Zhang, G. B.Wang, H. G.García, FedericoACCRETIONACCRETION DISKSSTARS: NEUTRONTECHNIQUES: SPECTROSCOPICX-RAYS: BINARIEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present the spectroscopy of the neutron star low-mass X-ray binary 4U 1636-53 using six simultaneous XMM-Newton and Rossi X-ray Timing Explorer observations. We applied different self-consistent reflection models to explore the features when the disk is illuminated by either the corona or the neutron star surface. We found that the spectra could be well fitted by these two types of models, with the derived emissivity index below a typical value of 3. The relative low emissivity can be explained if the neutron star and the corona, working together as an extended illuminator, simultaneously illuminate and ionize the disk. Additionally, the derived ionization parameter in the lamppost geometry is larger than the theoretical prediction. This inconsistency likely suggests that the corona does not emit isotropically in a realistic context. Furthermore, we also found that there is a possible trend between the height of the corona and the normalization of the disk emission. This could be understood either as a variation in the reflected radiation pressure or in the context of a jet base. Finally, we found that the disk is less ionized if it is illuminated by the neutron star, indicating that the illuminating source has significant influence on the physical properties of the disk.Fil: Lyu, M.. Xiangtan University; ChinaFil: Zhang, G. B.. Chinese Academy of Sciences; República de ChinaFil: Wang, H. G.. Guangzhou University; ChinaFil: García, Federico. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; ArgentinaEDP Sciences2023-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/231215Lyu, M.; Zhang, G. B.; Wang, H. G.; García, Federico; Investigation into the reflection properties of the neutron star low-mass X-ray binary 4U 1636–53; EDP Sciences; Astronomy and Astrophysics; 677; 9-2023; 1-140004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202346584info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2023/09/aa46584-23/aa46584-23.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:02:41Zoai:ri.conicet.gov.ar:11336/231215instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:02:41.739CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Investigation into the reflection properties of the neutron star low-mass X-ray binary 4U 1636–53
title Investigation into the reflection properties of the neutron star low-mass X-ray binary 4U 1636–53
spellingShingle Investigation into the reflection properties of the neutron star low-mass X-ray binary 4U 1636–53
Lyu, M.
ACCRETION
ACCRETION DISKS
STARS: NEUTRON
TECHNIQUES: SPECTROSCOPIC
X-RAYS: BINARIES
title_short Investigation into the reflection properties of the neutron star low-mass X-ray binary 4U 1636–53
title_full Investigation into the reflection properties of the neutron star low-mass X-ray binary 4U 1636–53
title_fullStr Investigation into the reflection properties of the neutron star low-mass X-ray binary 4U 1636–53
title_full_unstemmed Investigation into the reflection properties of the neutron star low-mass X-ray binary 4U 1636–53
title_sort Investigation into the reflection properties of the neutron star low-mass X-ray binary 4U 1636–53
dc.creator.none.fl_str_mv Lyu, M.
Zhang, G. B.
Wang, H. G.
García, Federico
author Lyu, M.
author_facet Lyu, M.
Zhang, G. B.
Wang, H. G.
García, Federico
author_role author
author2 Zhang, G. B.
Wang, H. G.
García, Federico
author2_role author
author
author
dc.subject.none.fl_str_mv ACCRETION
ACCRETION DISKS
STARS: NEUTRON
TECHNIQUES: SPECTROSCOPIC
X-RAYS: BINARIES
topic ACCRETION
ACCRETION DISKS
STARS: NEUTRON
TECHNIQUES: SPECTROSCOPIC
X-RAYS: BINARIES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present the spectroscopy of the neutron star low-mass X-ray binary 4U 1636-53 using six simultaneous XMM-Newton and Rossi X-ray Timing Explorer observations. We applied different self-consistent reflection models to explore the features when the disk is illuminated by either the corona or the neutron star surface. We found that the spectra could be well fitted by these two types of models, with the derived emissivity index below a typical value of 3. The relative low emissivity can be explained if the neutron star and the corona, working together as an extended illuminator, simultaneously illuminate and ionize the disk. Additionally, the derived ionization parameter in the lamppost geometry is larger than the theoretical prediction. This inconsistency likely suggests that the corona does not emit isotropically in a realistic context. Furthermore, we also found that there is a possible trend between the height of the corona and the normalization of the disk emission. This could be understood either as a variation in the reflected radiation pressure or in the context of a jet base. Finally, we found that the disk is less ionized if it is illuminated by the neutron star, indicating that the illuminating source has significant influence on the physical properties of the disk.
Fil: Lyu, M.. Xiangtan University; China
Fil: Zhang, G. B.. Chinese Academy of Sciences; República de China
Fil: Wang, H. G.. Guangzhou University; China
Fil: García, Federico. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
description We present the spectroscopy of the neutron star low-mass X-ray binary 4U 1636-53 using six simultaneous XMM-Newton and Rossi X-ray Timing Explorer observations. We applied different self-consistent reflection models to explore the features when the disk is illuminated by either the corona or the neutron star surface. We found that the spectra could be well fitted by these two types of models, with the derived emissivity index below a typical value of 3. The relative low emissivity can be explained if the neutron star and the corona, working together as an extended illuminator, simultaneously illuminate and ionize the disk. Additionally, the derived ionization parameter in the lamppost geometry is larger than the theoretical prediction. This inconsistency likely suggests that the corona does not emit isotropically in a realistic context. Furthermore, we also found that there is a possible trend between the height of the corona and the normalization of the disk emission. This could be understood either as a variation in the reflected radiation pressure or in the context of a jet base. Finally, we found that the disk is less ionized if it is illuminated by the neutron star, indicating that the illuminating source has significant influence on the physical properties of the disk.
publishDate 2023
dc.date.none.fl_str_mv 2023-09
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/11336/231215
Lyu, M.; Zhang, G. B.; Wang, H. G.; García, Federico; Investigation into the reflection properties of the neutron star low-mass X-ray binary 4U 1636–53; EDP Sciences; Astronomy and Astrophysics; 677; 9-2023; 1-14
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/231215
identifier_str_mv Lyu, M.; Zhang, G. B.; Wang, H. G.; García, Federico; Investigation into the reflection properties of the neutron star low-mass X-ray binary 4U 1636–53; EDP Sciences; Astronomy and Astrophysics; 677; 9-2023; 1-14
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202346584
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2023/09/aa46584-23/aa46584-23.html
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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