Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICER

Autores
Mancuso, Giulio Cesare; Altamirano, D.; Bult, P.; Chenevez, J.; Guillot, S.; Güver, T.; Jaisawal, G. K.; Malacaria, C.; Ng, M.; Sanna, A.; Strohmayer, T. E.
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report the discovery of millihertz quasi-periodic oscillations (mHz QPOs) from the neutron star (NS) low-mass X-ray binary 4U 1730-22 using the Neutron Star Interior Composition Explorer (NICER). After being inactive for almost 50 years, 4U 1730-22 went into outburst twice between June and August 2021, and between February and July 2022. We analyse all the NICER observations of this source, and detect mHz QPOs with a significance > 4 σ in 35 observations. The QPO frequency of the full data set ranged between ∼4.5 and ∼8.1 mHz with an average fractional rms amplitude of the order of ∼2 per cent. The X-ray colour analysis strongly suggests that 4U 1730-22 was in a soft spectral state during the QPO detections. Our findings are consistent with those reported for other sources where the mHz QPOs have been interpreted as the result of a special mode of He burning on the NS surface called marginally stable nuclear burning (MSNB). We conclude that the mHz QPOs reported in this work are also associated with the MSNB, making 4U 1730-22 the eighth source that shows this phenomenology. We discuss our findings in the context of the heat flux from the NS crust.
Fil: Mancuso, Giulio Cesare. Universidad Nacional de La Plata; Argentina. 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: Altamirano, D.. University of Southampton; Reino Unido
Fil: Bult, P.. University of Maryland; Estados Unidos
Fil: Chenevez, J.. Technical University of Denmark; Dinamarca
Fil: Guillot, S.. Cnes Centre National D'etudes Spatiales; Francia
Fil: Güver, T.. Istanbul Üniversitesi; Turquía
Fil: Jaisawal, G. K.. Technical University of Denmark; Dinamarca
Fil: Malacaria, C.. International Space Science Institute; Suiza
Fil: Ng, M.. MIT Kavli Institute For Astrophysics And Space Research; Estados Unidos
Fil: Sanna, A.. Università Degli Studi Di Cagliari; Italia
Fil: Strohmayer, T. E.. Nasa Goddard Space Flight Center; Estados Unidos
Materia
ACCRETION, ACCRETION DISCS
STARS: INDIVIDUAL: 4U 1730 - 22
STARS: NEUTRON
X-RAYS: BINARIES
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:11336/228819
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICERMancuso, Giulio CesareAltamirano, D.Bult, P.Chenevez, J.Guillot, S.Güver, T.Jaisawal, G. K.Malacaria, C.Ng, M.Sanna, A.Strohmayer, T. E.ACCRETION, ACCRETION DISCSSTARS: INDIVIDUAL: 4U 1730 - 22STARS: NEUTRONX-RAYS: BINARIEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report the discovery of millihertz quasi-periodic oscillations (mHz QPOs) from the neutron star (NS) low-mass X-ray binary 4U 1730-22 using the Neutron Star Interior Composition Explorer (NICER). After being inactive for almost 50 years, 4U 1730-22 went into outburst twice between June and August 2021, and between February and July 2022. We analyse all the NICER observations of this source, and detect mHz QPOs with a significance > 4 σ in 35 observations. The QPO frequency of the full data set ranged between ∼4.5 and ∼8.1 mHz with an average fractional rms amplitude of the order of ∼2 per cent. The X-ray colour analysis strongly suggests that 4U 1730-22 was in a soft spectral state during the QPO detections. Our findings are consistent with those reported for other sources where the mHz QPOs have been interpreted as the result of a special mode of He burning on the NS surface called marginally stable nuclear burning (MSNB). We conclude that the mHz QPOs reported in this work are also associated with the MSNB, making 4U 1730-22 the eighth source that shows this phenomenology. We discuss our findings in the context of the heat flux from the NS crust.Fil: Mancuso, Giulio Cesare. Universidad Nacional de La Plata; Argentina. 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: Altamirano, D.. University of Southampton; Reino UnidoFil: Bult, P.. University of Maryland; Estados UnidosFil: Chenevez, J.. Technical University of Denmark; DinamarcaFil: Guillot, S.. Cnes Centre National D'etudes Spatiales; FranciaFil: Güver, T.. Istanbul Üniversitesi; TurquíaFil: Jaisawal, G. K.. Technical University of Denmark; DinamarcaFil: Malacaria, C.. International Space Science Institute; SuizaFil: Ng, M.. MIT Kavli Institute For Astrophysics And Space Research; Estados UnidosFil: Sanna, A.. Università Degli Studi Di Cagliari; ItaliaFil: Strohmayer, T. E.. Nasa Goddard Space Flight Center; Estados UnidosWiley Blackwell Publishing, Inc2023-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/228819Mancuso, Giulio Cesare; Altamirano, D.; Bult, P.; Chenevez, J.; Guillot, S.; et al.; Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICER; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 521; 4; 6-2023; 5616-56230035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stad949info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/521/4/5616/7093415info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:03:06Zoai:ri.conicet.gov.ar:11336/228819instacron: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 13:03:06.864CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICER
title Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICER
spellingShingle Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICER
Mancuso, Giulio Cesare
ACCRETION, ACCRETION DISCS
STARS: INDIVIDUAL: 4U 1730 - 22
STARS: NEUTRON
X-RAYS: BINARIES
title_short Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICER
title_full Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICER
title_fullStr Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICER
title_full_unstemmed Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICER
title_sort Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICER
dc.creator.none.fl_str_mv Mancuso, Giulio Cesare
Altamirano, D.
Bult, P.
Chenevez, J.
Guillot, S.
Güver, T.
Jaisawal, G. K.
Malacaria, C.
Ng, M.
Sanna, A.
Strohmayer, T. E.
author Mancuso, Giulio Cesare
author_facet Mancuso, Giulio Cesare
Altamirano, D.
Bult, P.
Chenevez, J.
Guillot, S.
Güver, T.
Jaisawal, G. K.
Malacaria, C.
Ng, M.
Sanna, A.
Strohmayer, T. E.
author_role author
author2 Altamirano, D.
Bult, P.
Chenevez, J.
Guillot, S.
Güver, T.
Jaisawal, G. K.
Malacaria, C.
Ng, M.
Sanna, A.
Strohmayer, T. E.
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv ACCRETION, ACCRETION DISCS
STARS: INDIVIDUAL: 4U 1730 - 22
STARS: NEUTRON
X-RAYS: BINARIES
topic ACCRETION, ACCRETION DISCS
STARS: INDIVIDUAL: 4U 1730 - 22
STARS: NEUTRON
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 report the discovery of millihertz quasi-periodic oscillations (mHz QPOs) from the neutron star (NS) low-mass X-ray binary 4U 1730-22 using the Neutron Star Interior Composition Explorer (NICER). After being inactive for almost 50 years, 4U 1730-22 went into outburst twice between June and August 2021, and between February and July 2022. We analyse all the NICER observations of this source, and detect mHz QPOs with a significance > 4 σ in 35 observations. The QPO frequency of the full data set ranged between ∼4.5 and ∼8.1 mHz with an average fractional rms amplitude of the order of ∼2 per cent. The X-ray colour analysis strongly suggests that 4U 1730-22 was in a soft spectral state during the QPO detections. Our findings are consistent with those reported for other sources where the mHz QPOs have been interpreted as the result of a special mode of He burning on the NS surface called marginally stable nuclear burning (MSNB). We conclude that the mHz QPOs reported in this work are also associated with the MSNB, making 4U 1730-22 the eighth source that shows this phenomenology. We discuss our findings in the context of the heat flux from the NS crust.
Fil: Mancuso, Giulio Cesare. Universidad Nacional de La Plata; Argentina. 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: Altamirano, D.. University of Southampton; Reino Unido
Fil: Bult, P.. University of Maryland; Estados Unidos
Fil: Chenevez, J.. Technical University of Denmark; Dinamarca
Fil: Guillot, S.. Cnes Centre National D'etudes Spatiales; Francia
Fil: Güver, T.. Istanbul Üniversitesi; Turquía
Fil: Jaisawal, G. K.. Technical University of Denmark; Dinamarca
Fil: Malacaria, C.. International Space Science Institute; Suiza
Fil: Ng, M.. MIT Kavli Institute For Astrophysics And Space Research; Estados Unidos
Fil: Sanna, A.. Università Degli Studi Di Cagliari; Italia
Fil: Strohmayer, T. E.. Nasa Goddard Space Flight Center; Estados Unidos
description We report the discovery of millihertz quasi-periodic oscillations (mHz QPOs) from the neutron star (NS) low-mass X-ray binary 4U 1730-22 using the Neutron Star Interior Composition Explorer (NICER). After being inactive for almost 50 years, 4U 1730-22 went into outburst twice between June and August 2021, and between February and July 2022. We analyse all the NICER observations of this source, and detect mHz QPOs with a significance > 4 σ in 35 observations. The QPO frequency of the full data set ranged between ∼4.5 and ∼8.1 mHz with an average fractional rms amplitude of the order of ∼2 per cent. The X-ray colour analysis strongly suggests that 4U 1730-22 was in a soft spectral state during the QPO detections. Our findings are consistent with those reported for other sources where the mHz QPOs have been interpreted as the result of a special mode of He burning on the NS surface called marginally stable nuclear burning (MSNB). We conclude that the mHz QPOs reported in this work are also associated with the MSNB, making 4U 1730-22 the eighth source that shows this phenomenology. We discuss our findings in the context of the heat flux from the NS crust.
publishDate 2023
dc.date.none.fl_str_mv 2023-06
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/11336/228819
Mancuso, Giulio Cesare; Altamirano, D.; Bult, P.; Chenevez, J.; Guillot, S.; et al.; Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICER; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 521; 4; 6-2023; 5616-5623
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/228819
identifier_str_mv Mancuso, Giulio Cesare; Altamirano, D.; Bult, P.; Chenevez, J.; Guillot, S.; et al.; Detection of millihertz quasi-periodic oscillations in the low-mass X-ray binary 4U 1730-22 with NICER; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 521; 4; 6-2023; 5616-5623
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/stad949
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/521/4/5616/7093415
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
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 12.993085

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