Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTAR

Autores
Marino, A.; Anitra, A.; Mazzola, S. M.; Di Salvo, T.; Sanna, A.; Bult, P.; Guillot, S.; Mancuso, Giulio Cesare; Ng, M.; Riggio, A.; Albayati, A.C.; Altamirano, D.; Arzoumanian, Z.; Burderi, L.; Cabras, C.; Chakrabarty, D.; Deiosso, N.; Gendreau, K.C.; Iaria, R.; Manca, A.; Strohmayer, T.E.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The neutron star low-mass X-ray binary SWIFT J1749.4-2807 is the only known eclipsing accreting millisecond X-ray pulsar. In this manuscript, we perform a spectral characterization of the system throughout its 2021, 2-week-long outburst, analysing 11 NICER observations and quasi-simultaneous XMM-Newton and NuSTAR single observations at the outburst peak. The broad-band spectrum is well-modelled with a blackbody component with a temperature of ∼0.6 keV, most likely consistent with a hotspot on the neutron star surface, and a Comptonization spectrum with power-law index Γ ∼1.9, arising from a hot corona at ∼12 keV. No direct emission from the disc was found, possibly due to it being too cool. A high truncation radius for the disc, i.e. at ∼20-30 RG, was obtained from the analysis of the broadened profile of the Fe line in the reflection component. The significant detection of a blue-shifted Fe XXVI absorption line at ∼7 keV indicates weakly relativistic X-ray disc winds, which are typically absent in the hard state of X-ray binaries. By comparing the low flux observed during the outburst and the one expected in a conservative mass-transfer, we conclude that mass-transfer in the system is highly non-conservative, as also suggested by the wind detection. Finally, using the NICER spectra alone, we followed the system while it was fading to quiescence. During the outburst decay, as the spectral shape hardened, the hotspot on the neutron star surface cooled down and shrank, a trend which could be consistent with the pure power-law spectrum observed during quiescence.
Fil: Marino, A.. Instituto de Estudios Espaciales de Cataluña; España
Fil: Anitra, A.. Università Degli Studi Di Palermo; Italia
Fil: Mazzola, S. M.. Università Degli Studi Di Cagliari; Italia
Fil: Di Salvo, T.. Università Degli Studi Di Palermo; Italia
Fil: Sanna, A.. Università Degli Studi Di Cagliari; Italia
Fil: Bult, P.. University of Maryland; Estados Unidos
Fil: Guillot, S.. Universite Paul Sabatier Toulouse; Francia
Fil: Mancuso, Giulio Cesare. 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
Fil: Ng, M.. Mit Kavli Institute For Astrophysics And Space Research; Estados Unidos
Fil: Riggio, A.. Università Degli Studi Di Cagliari; Italia
Fil: Albayati, A.C.. University of Southampton; Reino Unido
Fil: Altamirano, D.. University of Southampton; Reino Unido
Fil: Arzoumanian, Z.. Nasa Goddard Space Flight Center; Estados Unidos
Fil: Burderi, L.. Università Degli Studi Di Cagliari; Italia
Fil: Cabras, C.. Università Degli Studi Di Cagliari; Italia
Fil: Chakrabarty, D.. Mit Kavli Institute For Astrophysics And Space Research; Estados Unidos
Fil: Deiosso, N.. Università Degli Studi Di Cagliari; Italia
Fil: Gendreau, K.C.. Nasa Goddard Space Flight Center; Estados Unidos
Fil: Iaria, R.. Università Degli Studi Di Palermo; Italia
Fil: Manca, A.. Università Degli Studi Di Palermo; Italia
Fil: Strohmayer, T.E.. Nasa Goddard Space Flight Center; Estados Unidos
Materia
ACCRETION, ACCRETION DISCS
STARS: NEUTRON
X-RAYS: BINARIES
X-RAYS: INDIVIDUALS: SWIFT J1749.4-2807
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/203949
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTARMarino, A.Anitra, A.Mazzola, S. M.Di Salvo, T.Sanna, A.Bult, P.Guillot, S.Mancuso, Giulio CesareNg, M.Riggio, A.Albayati, A.C.Altamirano, D.Arzoumanian, Z.Burderi, L.Cabras, C.Chakrabarty, D.Deiosso, N.Gendreau, K.C.Iaria, R.Manca, A.Strohmayer, T.E.ACCRETION, ACCRETION DISCSSTARS: NEUTRONX-RAYS: BINARIESX-RAYS: INDIVIDUALS: SWIFT J1749.4-2807https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The neutron star low-mass X-ray binary SWIFT J1749.4-2807 is the only known eclipsing accreting millisecond X-ray pulsar. In this manuscript, we perform a spectral characterization of the system throughout its 2021, 2-week-long outburst, analysing 11 NICER observations and quasi-simultaneous XMM-Newton and NuSTAR single observations at the outburst peak. The broad-band spectrum is well-modelled with a blackbody component with a temperature of ∼0.6 keV, most likely consistent with a hotspot on the neutron star surface, and a Comptonization spectrum with power-law index Γ ∼1.9, arising from a hot corona at ∼12 keV. No direct emission from the disc was found, possibly due to it being too cool. A high truncation radius for the disc, i.e. at ∼20-30 RG, was obtained from the analysis of the broadened profile of the Fe line in the reflection component. The significant detection of a blue-shifted Fe XXVI absorption line at ∼7 keV indicates weakly relativistic X-ray disc winds, which are typically absent in the hard state of X-ray binaries. By comparing the low flux observed during the outburst and the one expected in a conservative mass-transfer, we conclude that mass-transfer in the system is highly non-conservative, as also suggested by the wind detection. Finally, using the NICER spectra alone, we followed the system while it was fading to quiescence. During the outburst decay, as the spectral shape hardened, the hotspot on the neutron star surface cooled down and shrank, a trend which could be consistent with the pure power-law spectrum observed during quiescence.Fil: Marino, A.. Instituto de Estudios Espaciales de Cataluña; EspañaFil: Anitra, A.. Università Degli Studi Di Palermo; ItaliaFil: Mazzola, S. M.. Università Degli Studi Di Cagliari; ItaliaFil: Di Salvo, T.. Università Degli Studi Di Palermo; ItaliaFil: Sanna, A.. Università Degli Studi Di Cagliari; ItaliaFil: Bult, P.. University of Maryland; Estados UnidosFil: Guillot, S.. Universite Paul Sabatier Toulouse; FranciaFil: Mancuso, Giulio Cesare. 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; ArgentinaFil: Ng, M.. Mit Kavli Institute For Astrophysics And Space Research; Estados UnidosFil: Riggio, A.. Università Degli Studi Di Cagliari; ItaliaFil: Albayati, A.C.. University of Southampton; Reino UnidoFil: Altamirano, D.. University of Southampton; Reino UnidoFil: Arzoumanian, Z.. Nasa Goddard Space Flight Center; Estados UnidosFil: Burderi, L.. Università Degli Studi Di Cagliari; ItaliaFil: Cabras, C.. Università Degli Studi Di Cagliari; ItaliaFil: Chakrabarty, D.. Mit Kavli Institute For Astrophysics And Space Research; Estados UnidosFil: Deiosso, N.. Università Degli Studi Di Cagliari; ItaliaFil: Gendreau, K.C.. Nasa Goddard Space Flight Center; Estados UnidosFil: Iaria, R.. Università Degli Studi Di Palermo; ItaliaFil: Manca, A.. Università Degli Studi Di Palermo; ItaliaFil: Strohmayer, T.E.. Nasa Goddard Space Flight Center; Estados UnidosWiley Blackwell Publishing, Inc2022-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/203949Marino, A.; Anitra, A.; Mazzola, S. M.; Di Salvo, T.; Sanna, A.; et al.; Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTAR; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 515; 3; 9-2022; 3838-38520035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stac2038info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/515/3/3838/6649820?redirectedFrom=fulltextinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:21:20Zoai:ri.conicet.gov.ar:11336/203949instacron: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:34982025-09-10 13:21:21.085CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTAR
title Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTAR
spellingShingle Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTAR
Marino, A.
ACCRETION, ACCRETION DISCS
STARS: NEUTRON
X-RAYS: BINARIES
X-RAYS: INDIVIDUALS: SWIFT J1749.4-2807
title_short Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTAR
title_full Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTAR
title_fullStr Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTAR
title_full_unstemmed Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTAR
title_sort Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTAR
dc.creator.none.fl_str_mv Marino, A.
Anitra, A.
Mazzola, S. M.
Di Salvo, T.
Sanna, A.
Bult, P.
Guillot, S.
Mancuso, Giulio Cesare
Ng, M.
Riggio, A.
Albayati, A.C.
Altamirano, D.
Arzoumanian, Z.
Burderi, L.
Cabras, C.
Chakrabarty, D.
Deiosso, N.
Gendreau, K.C.
Iaria, R.
Manca, A.
Strohmayer, T.E.
author Marino, A.
author_facet Marino, A.
Anitra, A.
Mazzola, S. M.
Di Salvo, T.
Sanna, A.
Bult, P.
Guillot, S.
Mancuso, Giulio Cesare
Ng, M.
Riggio, A.
Albayati, A.C.
Altamirano, D.
Arzoumanian, Z.
Burderi, L.
Cabras, C.
Chakrabarty, D.
Deiosso, N.
Gendreau, K.C.
Iaria, R.
Manca, A.
Strohmayer, T.E.
author_role author
author2 Anitra, A.
Mazzola, S. M.
Di Salvo, T.
Sanna, A.
Bult, P.
Guillot, S.
Mancuso, Giulio Cesare
Ng, M.
Riggio, A.
Albayati, A.C.
Altamirano, D.
Arzoumanian, Z.
Burderi, L.
Cabras, C.
Chakrabarty, D.
Deiosso, N.
Gendreau, K.C.
Iaria, R.
Manca, A.
Strohmayer, T.E.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv ACCRETION, ACCRETION DISCS
STARS: NEUTRON
X-RAYS: BINARIES
X-RAYS: INDIVIDUALS: SWIFT J1749.4-2807
topic ACCRETION, ACCRETION DISCS
STARS: NEUTRON
X-RAYS: BINARIES
X-RAYS: INDIVIDUALS: SWIFT J1749.4-2807
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The neutron star low-mass X-ray binary SWIFT J1749.4-2807 is the only known eclipsing accreting millisecond X-ray pulsar. In this manuscript, we perform a spectral characterization of the system throughout its 2021, 2-week-long outburst, analysing 11 NICER observations and quasi-simultaneous XMM-Newton and NuSTAR single observations at the outburst peak. The broad-band spectrum is well-modelled with a blackbody component with a temperature of ∼0.6 keV, most likely consistent with a hotspot on the neutron star surface, and a Comptonization spectrum with power-law index Γ ∼1.9, arising from a hot corona at ∼12 keV. No direct emission from the disc was found, possibly due to it being too cool. A high truncation radius for the disc, i.e. at ∼20-30 RG, was obtained from the analysis of the broadened profile of the Fe line in the reflection component. The significant detection of a blue-shifted Fe XXVI absorption line at ∼7 keV indicates weakly relativistic X-ray disc winds, which are typically absent in the hard state of X-ray binaries. By comparing the low flux observed during the outburst and the one expected in a conservative mass-transfer, we conclude that mass-transfer in the system is highly non-conservative, as also suggested by the wind detection. Finally, using the NICER spectra alone, we followed the system while it was fading to quiescence. During the outburst decay, as the spectral shape hardened, the hotspot on the neutron star surface cooled down and shrank, a trend which could be consistent with the pure power-law spectrum observed during quiescence.
Fil: Marino, A.. Instituto de Estudios Espaciales de Cataluña; España
Fil: Anitra, A.. Università Degli Studi Di Palermo; Italia
Fil: Mazzola, S. M.. Università Degli Studi Di Cagliari; Italia
Fil: Di Salvo, T.. Università Degli Studi Di Palermo; Italia
Fil: Sanna, A.. Università Degli Studi Di Cagliari; Italia
Fil: Bult, P.. University of Maryland; Estados Unidos
Fil: Guillot, S.. Universite Paul Sabatier Toulouse; Francia
Fil: Mancuso, Giulio Cesare. 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
Fil: Ng, M.. Mit Kavli Institute For Astrophysics And Space Research; Estados Unidos
Fil: Riggio, A.. Università Degli Studi Di Cagliari; Italia
Fil: Albayati, A.C.. University of Southampton; Reino Unido
Fil: Altamirano, D.. University of Southampton; Reino Unido
Fil: Arzoumanian, Z.. Nasa Goddard Space Flight Center; Estados Unidos
Fil: Burderi, L.. Università Degli Studi Di Cagliari; Italia
Fil: Cabras, C.. Università Degli Studi Di Cagliari; Italia
Fil: Chakrabarty, D.. Mit Kavli Institute For Astrophysics And Space Research; Estados Unidos
Fil: Deiosso, N.. Università Degli Studi Di Cagliari; Italia
Fil: Gendreau, K.C.. Nasa Goddard Space Flight Center; Estados Unidos
Fil: Iaria, R.. Università Degli Studi Di Palermo; Italia
Fil: Manca, A.. Università Degli Studi Di Palermo; Italia
Fil: Strohmayer, T.E.. Nasa Goddard Space Flight Center; Estados Unidos
description The neutron star low-mass X-ray binary SWIFT J1749.4-2807 is the only known eclipsing accreting millisecond X-ray pulsar. In this manuscript, we perform a spectral characterization of the system throughout its 2021, 2-week-long outburst, analysing 11 NICER observations and quasi-simultaneous XMM-Newton and NuSTAR single observations at the outburst peak. The broad-band spectrum is well-modelled with a blackbody component with a temperature of ∼0.6 keV, most likely consistent with a hotspot on the neutron star surface, and a Comptonization spectrum with power-law index Γ ∼1.9, arising from a hot corona at ∼12 keV. No direct emission from the disc was found, possibly due to it being too cool. A high truncation radius for the disc, i.e. at ∼20-30 RG, was obtained from the analysis of the broadened profile of the Fe line in the reflection component. The significant detection of a blue-shifted Fe XXVI absorption line at ∼7 keV indicates weakly relativistic X-ray disc winds, which are typically absent in the hard state of X-ray binaries. By comparing the low flux observed during the outburst and the one expected in a conservative mass-transfer, we conclude that mass-transfer in the system is highly non-conservative, as also suggested by the wind detection. Finally, using the NICER spectra alone, we followed the system while it was fading to quiescence. During the outburst decay, as the spectral shape hardened, the hotspot on the neutron star surface cooled down and shrank, a trend which could be consistent with the pure power-law spectrum observed during quiescence.
publishDate 2022
dc.date.none.fl_str_mv 2022-09
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/11336/203949
Marino, A.; Anitra, A.; Mazzola, S. M.; Di Salvo, T.; Sanna, A.; et al.; Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTAR; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 515; 3; 9-2022; 3838-3852
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/203949
identifier_str_mv Marino, A.; Anitra, A.; Mazzola, S. M.; Di Salvo, T.; Sanna, A.; et al.; Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTAR; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 515; 3; 9-2022; 3838-3852
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stac2038
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/515/3/3838/6649820?redirectedFrom=fulltext
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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 12.48226

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