Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis

Autores
Luna, Gerardo Juan Manuel; Mukai, K.; Sokoloski, J. L.; Nelson, T.; Kuin, P.; Segreto, A.; Cusumano, Julio Ricardo; Jaque Arancibia, Marcelo Daniel; Nuñez, Natalia Edith
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A sudden increase in the rate at which material reaches the most internal part of an accretion disk, i.e., the boundary layer, can change its structure dramatically. We have witnessed such a change for the first time in the symbiotic recurrent nova T CrB. Our analysis of XMM-Newton, Swift Burst Alert Telescope (BAT)/X-Ray Telescope (XRT)/UltraViolet Optical Telescope (UVOT), and the American Association of Variable Stars Observers (AAVSO) V- and B-band data indicates that during an optical brightening event that started in early 2014 (ΔV ≈ 1.5) the following occurred: (i) the hard X-ray emission as seen with BAT almost vanished; (ii) the XRT X-ray flux decreased significantly, while the optical flux remained high; (iii) the UV flux increased by at least a factor of 40 over the quiescent value; and (iv) the X-ray spectrum became much softer and a bright, new blackbody-like component appeared. We suggest that the optical brightening event, which could be a similar event to that observed about 8 years before the most recent thermonuclear outburst in 1946, is due to a disk instability.
Fil: Luna, Gerardo Juan Manuel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Mukai, K.. Cresst And X-ray Astrophysics Laboratory, Nasa/gcfc; Estados Unidos
Fil: Sokoloski, J. L.. Columbia University; Estados Unidos
Fil: Nelson, T.. University of Pittsburgh at Johnstown; Estados Unidos
Fil: Kuin, P.. University College London; Estados Unidos
Fil: Segreto, A.. Inaf-istituto Di Astrofisica Spaziale E Fisica Cosmica; Italia
Fil: Cusumano, Julio Ricardo. Inaf-istituto Di Astrofisica Spaziale E Fisica Cosmica; Italia
Fil: Jaque Arancibia, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina
Fil: Nuñez, Natalia Edith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina
Materia
ACCRETION, ACCRETION DISKS
BINARIES: SYMBIOTIC
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:11336/86353
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/86353
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae BorealisLuna, Gerardo Juan ManuelMukai, K.Sokoloski, J. L.Nelson, T.Kuin, P.Segreto, A.Cusumano, Julio RicardoJaque Arancibia, Marcelo DanielNuñez, Natalia EdithACCRETION, ACCRETION DISKSBINARIES: SYMBIOTICX-RAYS: BINARIEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A sudden increase in the rate at which material reaches the most internal part of an accretion disk, i.e., the boundary layer, can change its structure dramatically. We have witnessed such a change for the first time in the symbiotic recurrent nova T CrB. Our analysis of XMM-Newton, Swift Burst Alert Telescope (BAT)/X-Ray Telescope (XRT)/UltraViolet Optical Telescope (UVOT), and the American Association of Variable Stars Observers (AAVSO) V- and B-band data indicates that during an optical brightening event that started in early 2014 (ΔV ≈ 1.5) the following occurred: (i) the hard X-ray emission as seen with BAT almost vanished; (ii) the XRT X-ray flux decreased significantly, while the optical flux remained high; (iii) the UV flux increased by at least a factor of 40 over the quiescent value; and (iv) the X-ray spectrum became much softer and a bright, new blackbody-like component appeared. We suggest that the optical brightening event, which could be a similar event to that observed about 8 years before the most recent thermonuclear outburst in 1946, is due to a disk instability.Fil: Luna, Gerardo Juan Manuel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Mukai, K.. Cresst And X-ray Astrophysics Laboratory, Nasa/gcfc; Estados UnidosFil: Sokoloski, J. L.. Columbia University; Estados UnidosFil: Nelson, T.. University of Pittsburgh at Johnstown; Estados UnidosFil: Kuin, P.. University College London; Estados UnidosFil: Segreto, A.. Inaf-istituto Di Astrofisica Spaziale E Fisica Cosmica; ItaliaFil: Cusumano, Julio Ricardo. Inaf-istituto Di Astrofisica Spaziale E Fisica Cosmica; ItaliaFil: Jaque Arancibia, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Nuñez, Natalia Edith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaEDP Sciences2018-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/86353Luna, Gerardo Juan Manuel; Mukai, K.; Sokoloski, J. L.; Nelson, T.; Kuin, P.; et al.; Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis; EDP Sciences; Astronomy and Astrophysics; 619; 11-2018; 61-680004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/201833747info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201833747info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:05:54Zoai:ri.conicet.gov.ar:11336/86353instacron: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:34982025-10-22 12:05:55.014CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis
title Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis
spellingShingle Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis
Luna, Gerardo Juan Manuel
ACCRETION, ACCRETION DISKS
BINARIES: SYMBIOTIC
X-RAYS: BINARIES
title_short Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis
title_full Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis
title_fullStr Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis
title_full_unstemmed Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis
title_sort Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis
dc.creator.none.fl_str_mv Luna, Gerardo Juan Manuel
Mukai, K.
Sokoloski, J. L.
Nelson, T.
Kuin, P.
Segreto, A.
Cusumano, Julio Ricardo
Jaque Arancibia, Marcelo Daniel
Nuñez, Natalia Edith
author Luna, Gerardo Juan Manuel
author_facet Luna, Gerardo Juan Manuel
Mukai, K.
Sokoloski, J. L.
Nelson, T.
Kuin, P.
Segreto, A.
Cusumano, Julio Ricardo
Jaque Arancibia, Marcelo Daniel
Nuñez, Natalia Edith
author_role author
author2 Mukai, K.
Sokoloski, J. L.
Nelson, T.
Kuin, P.
Segreto, A.
Cusumano, Julio Ricardo
Jaque Arancibia, Marcelo Daniel
Nuñez, Natalia Edith
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv ACCRETION, ACCRETION DISKS
BINARIES: SYMBIOTIC
X-RAYS: BINARIES
topic ACCRETION, ACCRETION DISKS
BINARIES: SYMBIOTIC
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 A sudden increase in the rate at which material reaches the most internal part of an accretion disk, i.e., the boundary layer, can change its structure dramatically. We have witnessed such a change for the first time in the symbiotic recurrent nova T CrB. Our analysis of XMM-Newton, Swift Burst Alert Telescope (BAT)/X-Ray Telescope (XRT)/UltraViolet Optical Telescope (UVOT), and the American Association of Variable Stars Observers (AAVSO) V- and B-band data indicates that during an optical brightening event that started in early 2014 (ΔV ≈ 1.5) the following occurred: (i) the hard X-ray emission as seen with BAT almost vanished; (ii) the XRT X-ray flux decreased significantly, while the optical flux remained high; (iii) the UV flux increased by at least a factor of 40 over the quiescent value; and (iv) the X-ray spectrum became much softer and a bright, new blackbody-like component appeared. We suggest that the optical brightening event, which could be a similar event to that observed about 8 years before the most recent thermonuclear outburst in 1946, is due to a disk instability.
Fil: Luna, Gerardo Juan Manuel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Mukai, K.. Cresst And X-ray Astrophysics Laboratory, Nasa/gcfc; Estados Unidos
Fil: Sokoloski, J. L.. Columbia University; Estados Unidos
Fil: Nelson, T.. University of Pittsburgh at Johnstown; Estados Unidos
Fil: Kuin, P.. University College London; Estados Unidos
Fil: Segreto, A.. Inaf-istituto Di Astrofisica Spaziale E Fisica Cosmica; Italia
Fil: Cusumano, Julio Ricardo. Inaf-istituto Di Astrofisica Spaziale E Fisica Cosmica; Italia
Fil: Jaque Arancibia, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina
Fil: Nuñez, Natalia Edith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina
description A sudden increase in the rate at which material reaches the most internal part of an accretion disk, i.e., the boundary layer, can change its structure dramatically. We have witnessed such a change for the first time in the symbiotic recurrent nova T CrB. Our analysis of XMM-Newton, Swift Burst Alert Telescope (BAT)/X-Ray Telescope (XRT)/UltraViolet Optical Telescope (UVOT), and the American Association of Variable Stars Observers (AAVSO) V- and B-band data indicates that during an optical brightening event that started in early 2014 (ΔV ≈ 1.5) the following occurred: (i) the hard X-ray emission as seen with BAT almost vanished; (ii) the XRT X-ray flux decreased significantly, while the optical flux remained high; (iii) the UV flux increased by at least a factor of 40 over the quiescent value; and (iv) the X-ray spectrum became much softer and a bright, new blackbody-like component appeared. We suggest that the optical brightening event, which could be a similar event to that observed about 8 years before the most recent thermonuclear outburst in 1946, is due to a disk instability.
publishDate 2018
dc.date.none.fl_str_mv 2018-11
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/11336/86353
Luna, Gerardo Juan Manuel; Mukai, K.; Sokoloski, J. L.; Nelson, T.; Kuin, P.; et al.; Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis; EDP Sciences; Astronomy and Astrophysics; 619; 11-2018; 61-68
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/86353
identifier_str_mv Luna, Gerardo Juan Manuel; Mukai, K.; Sokoloski, J. L.; Nelson, T.; Kuin, P.; et al.; Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis; EDP Sciences; Astronomy and Astrophysics; 619; 11-2018; 61-68
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/url/https://www.aanda.org/10.1051/0004-6361/201833747
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201833747
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
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 12.982451

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