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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/86353
Ver los metadatos del registro completo
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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 |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1846782413113393152 |
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12.982451 |