The Thermonuclear X-Ray Bursts of 4U 1730-22

Autores
Bult, Peter; Mancuso, Giulio Cesare; Strohmayer, T. E.; Albayati, Arianna C.; Altamirano, Diego; Buisson, Douglas J. K.; Chenevez, Jérôme; Guillot, Sebastien; Güver, Tolga; Iwakiri, Wataru; Jaisawal, Gaurava K.; Ng, Mason; Sanna, Andrea; Swank, Jean H.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present observations of the historic transient 4U 1730-22 as observed with the Neutron Star Interior Composition Explorer (NICER). After remaining in quiescence since its 1972 discovery, this X-ray binary showed renewed outburst activity in 2021 and 2022. We observed 4U 173-22 extensively with NICER, detecting a total of 17 thermonuclear X-ray bursts. From a spectroscopic analysis, we find that these X-ray bursts can be divided into a group of bright and weak bursts. All bright bursts showed 1-2 s rise times and a photospheric radius expansion phase, while the weak bursts showed a slower ∼5 s rise with a tendency for concave shapes. From the photospheric radius expansion flux, we estimate the source distance at 6.9 ± 0.2 kpc. We consider various interpretations for our observations and suggest that they may be explained if accreted material is burning stably at the stellar equator and unstable ignition occurs at a range of higher latitudes.
Fil: Bult, Peter. University of Maryland; Estados Unidos. Nasa Goddard Space Flight Center; Estados Unidos
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: Strohmayer, T. E.. Nasa Goddard Space Flight Center; Estados Unidos
Fil: Albayati, Arianna C.. University of Southampton; Reino Unido
Fil: Altamirano, Diego. University of Southampton; Reino Unido
Fil: Buisson, Douglas J. K.. University of Southampton; Reino Unido
Fil: Chenevez, Jérôme. Technical University of Denmark; Dinamarca
Fil: Guillot, Sebastien. Cnes Centre National D'etudes Spatiales; Francia
Fil: Güver, Tolga. Istanbul Üniversitesi; Turquía
Fil: Iwakiri, Wataru. Chuo University; China
Fil: Jaisawal, Gaurava K.. Technical University of Denmark; Dinamarca
Fil: Ng, Mason. Mit Kavli Institute For Astrophysics And Space Research; Estados Unidos
Fil: Sanna, Andrea. Università Degli Studi Di Cagliari; Italia
Fil: Swank, Jean H.. Nasa Goddard Space Flight Center; Estados Unidos
Materia
LOW-MASS X-RAY BINARY STARS
X-RAY BURSTS
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:11336/230080
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/230080
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The Thermonuclear X-Ray Bursts of 4U 1730-22Bult, PeterMancuso, Giulio CesareStrohmayer, T. E.Albayati, Arianna C.Altamirano, DiegoBuisson, Douglas J. K.Chenevez, JérômeGuillot, SebastienGüver, TolgaIwakiri, WataruJaisawal, Gaurava K.Ng, MasonSanna, AndreaSwank, Jean H.LOW-MASS X-RAY BINARY STARSX-RAY BURSTShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present observations of the historic transient 4U 1730-22 as observed with the Neutron Star Interior Composition Explorer (NICER). After remaining in quiescence since its 1972 discovery, this X-ray binary showed renewed outburst activity in 2021 and 2022. We observed 4U 173-22 extensively with NICER, detecting a total of 17 thermonuclear X-ray bursts. From a spectroscopic analysis, we find that these X-ray bursts can be divided into a group of bright and weak bursts. All bright bursts showed 1-2 s rise times and a photospheric radius expansion phase, while the weak bursts showed a slower ∼5 s rise with a tendency for concave shapes. From the photospheric radius expansion flux, we estimate the source distance at 6.9 ± 0.2 kpc. We consider various interpretations for our observations and suggest that they may be explained if accreted material is burning stably at the stellar equator and unstable ignition occurs at a range of higher latitudes.Fil: Bult, Peter. University of Maryland; Estados Unidos. Nasa Goddard Space Flight Center; Estados UnidosFil: 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: Strohmayer, T. E.. Nasa Goddard Space Flight Center; Estados UnidosFil: Albayati, Arianna C.. University of Southampton; Reino UnidoFil: Altamirano, Diego. University of Southampton; Reino UnidoFil: Buisson, Douglas J. K.. University of Southampton; Reino UnidoFil: Chenevez, Jérôme. Technical University of Denmark; DinamarcaFil: Guillot, Sebastien. Cnes Centre National D'etudes Spatiales; FranciaFil: Güver, Tolga. Istanbul Üniversitesi; TurquíaFil: Iwakiri, Wataru. Chuo University; ChinaFil: Jaisawal, Gaurava K.. Technical University of Denmark; DinamarcaFil: Ng, Mason. Mit Kavli Institute For Astrophysics And Space Research; Estados UnidosFil: Sanna, Andrea. Università Degli Studi Di Cagliari; ItaliaFil: Swank, Jean H.. Nasa Goddard Space Flight Center; Estados UnidosIOP Publishing2022-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/230080Bult, Peter; Mancuso, Giulio Cesare; Strohmayer, T. E.; Albayati, Arianna C.; Altamirano, Diego; et al.; The Thermonuclear X-Ray Bursts of 4U 1730-22; IOP Publishing; Astrophysical Journal; 940; 1; 11-2022; 1-100004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/ac9b26info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/ac9b26info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:06:20Zoai:ri.conicet.gov.ar:11336/230080instacron: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:34982025-09-03 10:06:20.738CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The Thermonuclear X-Ray Bursts of 4U 1730-22
title The Thermonuclear X-Ray Bursts of 4U 1730-22
spellingShingle The Thermonuclear X-Ray Bursts of 4U 1730-22
Bult, Peter
LOW-MASS X-RAY BINARY STARS
X-RAY BURSTS
title_short The Thermonuclear X-Ray Bursts of 4U 1730-22
title_full The Thermonuclear X-Ray Bursts of 4U 1730-22
title_fullStr The Thermonuclear X-Ray Bursts of 4U 1730-22
title_full_unstemmed The Thermonuclear X-Ray Bursts of 4U 1730-22
title_sort The Thermonuclear X-Ray Bursts of 4U 1730-22
dc.creator.none.fl_str_mv Bult, Peter
Mancuso, Giulio Cesare
Strohmayer, T. E.
Albayati, Arianna C.
Altamirano, Diego
Buisson, Douglas J. K.
Chenevez, Jérôme
Guillot, Sebastien
Güver, Tolga
Iwakiri, Wataru
Jaisawal, Gaurava K.
Ng, Mason
Sanna, Andrea
Swank, Jean H.
author Bult, Peter
author_facet Bult, Peter
Mancuso, Giulio Cesare
Strohmayer, T. E.
Albayati, Arianna C.
Altamirano, Diego
Buisson, Douglas J. K.
Chenevez, Jérôme
Guillot, Sebastien
Güver, Tolga
Iwakiri, Wataru
Jaisawal, Gaurava K.
Ng, Mason
Sanna, Andrea
Swank, Jean H.
author_role author
author2 Mancuso, Giulio Cesare
Strohmayer, T. E.
Albayati, Arianna C.
Altamirano, Diego
Buisson, Douglas J. K.
Chenevez, Jérôme
Guillot, Sebastien
Güver, Tolga
Iwakiri, Wataru
Jaisawal, Gaurava K.
Ng, Mason
Sanna, Andrea
Swank, Jean H.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv LOW-MASS X-RAY BINARY STARS
X-RAY BURSTS
topic LOW-MASS X-RAY BINARY STARS
X-RAY BURSTS
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 observations of the historic transient 4U 1730-22 as observed with the Neutron Star Interior Composition Explorer (NICER). After remaining in quiescence since its 1972 discovery, this X-ray binary showed renewed outburst activity in 2021 and 2022. We observed 4U 173-22 extensively with NICER, detecting a total of 17 thermonuclear X-ray bursts. From a spectroscopic analysis, we find that these X-ray bursts can be divided into a group of bright and weak bursts. All bright bursts showed 1-2 s rise times and a photospheric radius expansion phase, while the weak bursts showed a slower ∼5 s rise with a tendency for concave shapes. From the photospheric radius expansion flux, we estimate the source distance at 6.9 ± 0.2 kpc. We consider various interpretations for our observations and suggest that they may be explained if accreted material is burning stably at the stellar equator and unstable ignition occurs at a range of higher latitudes.
Fil: Bult, Peter. University of Maryland; Estados Unidos. Nasa Goddard Space Flight Center; Estados Unidos
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: Strohmayer, T. E.. Nasa Goddard Space Flight Center; Estados Unidos
Fil: Albayati, Arianna C.. University of Southampton; Reino Unido
Fil: Altamirano, Diego. University of Southampton; Reino Unido
Fil: Buisson, Douglas J. K.. University of Southampton; Reino Unido
Fil: Chenevez, Jérôme. Technical University of Denmark; Dinamarca
Fil: Guillot, Sebastien. Cnes Centre National D'etudes Spatiales; Francia
Fil: Güver, Tolga. Istanbul Üniversitesi; Turquía
Fil: Iwakiri, Wataru. Chuo University; China
Fil: Jaisawal, Gaurava K.. Technical University of Denmark; Dinamarca
Fil: Ng, Mason. Mit Kavli Institute For Astrophysics And Space Research; Estados Unidos
Fil: Sanna, Andrea. Università Degli Studi Di Cagliari; Italia
Fil: Swank, Jean H.. Nasa Goddard Space Flight Center; Estados Unidos
description We present observations of the historic transient 4U 1730-22 as observed with the Neutron Star Interior Composition Explorer (NICER). After remaining in quiescence since its 1972 discovery, this X-ray binary showed renewed outburst activity in 2021 and 2022. We observed 4U 173-22 extensively with NICER, detecting a total of 17 thermonuclear X-ray bursts. From a spectroscopic analysis, we find that these X-ray bursts can be divided into a group of bright and weak bursts. All bright bursts showed 1-2 s rise times and a photospheric radius expansion phase, while the weak bursts showed a slower ∼5 s rise with a tendency for concave shapes. From the photospheric radius expansion flux, we estimate the source distance at 6.9 ± 0.2 kpc. We consider various interpretations for our observations and suggest that they may be explained if accreted material is burning stably at the stellar equator and unstable ignition occurs at a range of higher latitudes.
publishDate 2022
dc.date.none.fl_str_mv 2022-11
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/11336/230080
Bult, Peter; Mancuso, Giulio Cesare; Strohmayer, T. E.; Albayati, Arianna C.; Altamirano, Diego; et al.; The Thermonuclear X-Ray Bursts of 4U 1730-22; IOP Publishing; Astrophysical Journal; 940; 1; 11-2022; 1-10
0004-637X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/230080
identifier_str_mv Bult, Peter; Mancuso, Giulio Cesare; Strohmayer, T. E.; Albayati, Arianna C.; Altamirano, Diego; et al.; The Thermonuclear X-Ray Bursts of 4U 1730-22; IOP Publishing; Astrophysical Journal; 940; 1; 11-2022; 1-10
0004-637X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/ac9b26
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/ac9b26
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 IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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 13.13397

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