SU Lyncis, a hard X-ray bright M giant: clues point to a large hidden population of symbiotic stars

Autores
Mukai, K.; Luna, Gerardo Juan Manuel; Cusumano, G.; Segreto, A.; Munari, U.; Sokoloski, J. L.; Lucy, A. B.; Nelson, T.; Nuñez, Natalia Edith
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Symbiotic star surveys have traditionally relied almost exclusively on low resolution optical spectroscopy. However, we can obtain a more reliable estimate of their total Galactic population by using all available signatures of the symbiotic phenomenon. Here we report the discovery of a hard X-ray source, 4PBC J0642.9+5528, in the Swift hard X-ray all-sky survey, and identify it with a poorly studied red giant, SU Lyn, using pointed Swift observations and ground-based optical spectroscopy. The X-ray spectrum, the optical to UV spectrum, and therapid UV variability of SU Lyn are all consistent with our interpretation that it is a symbiotic star containing an accreting white dwarf. The symbiotic nature of SU Lyn went unnoticed until now, because it does not exhibit emission lines strong enough to be obvious in low resolutionspectra. We argue that symbiotic stars without shell-burning have weak emission lines, and that the current lists of symbiotic stars are biased in favour of shell-burning systems. We conclude that the true population of symbiotic stars has been underestimated, potentially by a large factor.
Fil: Mukai, K.. National Aeronautics And Space Administration. Goddart Institute For Space Studies; Estados Unidos
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: Cusumano, G.. Istituto di Astrofisica Spaziale e Fisica Cosmica; Italia
Fil: Segreto, A.. Istituto di Astrofisica Spaziale e Fisica Cosmica; Italia
Fil: Munari, U.. Astronomical Observatory of Padova; Italia
Fil: Sokoloski, J. L.. Columbia University; Estados Unidos
Fil: Lucy, A. B.. Columbia University; Estados Unidos
Fil: Nelson, T.. University Of Pittsburgh; Estados Unidos
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
binaries: symbiotic
stars: individual: SU Lyn
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:11336/18304
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling SU Lyncis, a hard X-ray bright M giant: clues point to a large hidden population of symbiotic starsMukai, K.Luna, Gerardo Juan ManuelCusumano, G.Segreto, A.Munari, U.Sokoloski, J. L.Lucy, A. B.Nelson, T.Nuñez, Natalia Edithbinaries: symbioticstars: individual: SU LynX-rays: binarieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Symbiotic star surveys have traditionally relied almost exclusively on low resolution optical spectroscopy. However, we can obtain a more reliable estimate of their total Galactic population by using all available signatures of the symbiotic phenomenon. Here we report the discovery of a hard X-ray source, 4PBC J0642.9+5528, in the Swift hard X-ray all-sky survey, and identify it with a poorly studied red giant, SU Lyn, using pointed Swift observations and ground-based optical spectroscopy. The X-ray spectrum, the optical to UV spectrum, and therapid UV variability of SU Lyn are all consistent with our interpretation that it is a symbiotic star containing an accreting white dwarf. The symbiotic nature of SU Lyn went unnoticed until now, because it does not exhibit emission lines strong enough to be obvious in low resolutionspectra. We argue that symbiotic stars without shell-burning have weak emission lines, and that the current lists of symbiotic stars are biased in favour of shell-burning systems. We conclude that the true population of symbiotic stars has been underestimated, potentially by a large factor.Fil: Mukai, K.. National Aeronautics And Space Administration. Goddart Institute For Space Studies; Estados UnidosFil: 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: Cusumano, G.. Istituto di Astrofisica Spaziale e Fisica Cosmica; ItaliaFil: Segreto, A.. Istituto di Astrofisica Spaziale e Fisica Cosmica; ItaliaFil: Munari, U.. Astronomical Observatory of Padova; ItaliaFil: Sokoloski, J. L.. Columbia University; Estados UnidosFil: Lucy, A. B.. Columbia University; Estados UnidosFil: Nelson, T.. University Of Pittsburgh; Estados UnidosFil: 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; ArgentinaOxford University Press2016-05-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/18304Mukai, K.; Luna, Gerardo Juan Manuel; Cusumano, G.; Segreto, A.; Munari, U.; et al.; SU Lyncis, a hard X-ray bright M giant: clues point to a large hidden population of symbiotic stars; Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 461; 1; 5-5-2016; L1-L50035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnrasl/article-abstract/461/1/L1/2589550/SU-Lyncis-a-hard-X-ray-bright-M-giant-clues-point?redirectedFrom=fulltextinfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnrasl/slw087info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:21:06Zoai:ri.conicet.gov.ar:11336/18304instacron: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:34982025-09-29 10:21:07.112CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv SU Lyncis, a hard X-ray bright M giant: clues point to a large hidden population of symbiotic stars
title SU Lyncis, a hard X-ray bright M giant: clues point to a large hidden population of symbiotic stars
spellingShingle SU Lyncis, a hard X-ray bright M giant: clues point to a large hidden population of symbiotic stars
Mukai, K.
binaries: symbiotic
stars: individual: SU Lyn
X-rays: binaries
title_short SU Lyncis, a hard X-ray bright M giant: clues point to a large hidden population of symbiotic stars
title_full SU Lyncis, a hard X-ray bright M giant: clues point to a large hidden population of symbiotic stars
title_fullStr SU Lyncis, a hard X-ray bright M giant: clues point to a large hidden population of symbiotic stars
title_full_unstemmed SU Lyncis, a hard X-ray bright M giant: clues point to a large hidden population of symbiotic stars
title_sort SU Lyncis, a hard X-ray bright M giant: clues point to a large hidden population of symbiotic stars
dc.creator.none.fl_str_mv Mukai, K.
Luna, Gerardo Juan Manuel
Cusumano, G.
Segreto, A.
Munari, U.
Sokoloski, J. L.
Lucy, A. B.
Nelson, T.
Nuñez, Natalia Edith
author Mukai, K.
author_facet Mukai, K.
Luna, Gerardo Juan Manuel
Cusumano, G.
Segreto, A.
Munari, U.
Sokoloski, J. L.
Lucy, A. B.
Nelson, T.
Nuñez, Natalia Edith
author_role author
author2 Luna, Gerardo Juan Manuel
Cusumano, G.
Segreto, A.
Munari, U.
Sokoloski, J. L.
Lucy, A. B.
Nelson, T.
Nuñez, Natalia Edith
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv binaries: symbiotic
stars: individual: SU Lyn
X-rays: binaries
topic binaries: symbiotic
stars: individual: SU Lyn
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 Symbiotic star surveys have traditionally relied almost exclusively on low resolution optical spectroscopy. However, we can obtain a more reliable estimate of their total Galactic population by using all available signatures of the symbiotic phenomenon. Here we report the discovery of a hard X-ray source, 4PBC J0642.9+5528, in the Swift hard X-ray all-sky survey, and identify it with a poorly studied red giant, SU Lyn, using pointed Swift observations and ground-based optical spectroscopy. The X-ray spectrum, the optical to UV spectrum, and therapid UV variability of SU Lyn are all consistent with our interpretation that it is a symbiotic star containing an accreting white dwarf. The symbiotic nature of SU Lyn went unnoticed until now, because it does not exhibit emission lines strong enough to be obvious in low resolutionspectra. We argue that symbiotic stars without shell-burning have weak emission lines, and that the current lists of symbiotic stars are biased in favour of shell-burning systems. We conclude that the true population of symbiotic stars has been underestimated, potentially by a large factor.
Fil: Mukai, K.. National Aeronautics And Space Administration. Goddart Institute For Space Studies; Estados Unidos
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: Cusumano, G.. Istituto di Astrofisica Spaziale e Fisica Cosmica; Italia
Fil: Segreto, A.. Istituto di Astrofisica Spaziale e Fisica Cosmica; Italia
Fil: Munari, U.. Astronomical Observatory of Padova; Italia
Fil: Sokoloski, J. L.. Columbia University; Estados Unidos
Fil: Lucy, A. B.. Columbia University; Estados Unidos
Fil: Nelson, T.. University Of Pittsburgh; Estados Unidos
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 Symbiotic star surveys have traditionally relied almost exclusively on low resolution optical spectroscopy. However, we can obtain a more reliable estimate of their total Galactic population by using all available signatures of the symbiotic phenomenon. Here we report the discovery of a hard X-ray source, 4PBC J0642.9+5528, in the Swift hard X-ray all-sky survey, and identify it with a poorly studied red giant, SU Lyn, using pointed Swift observations and ground-based optical spectroscopy. The X-ray spectrum, the optical to UV spectrum, and therapid UV variability of SU Lyn are all consistent with our interpretation that it is a symbiotic star containing an accreting white dwarf. The symbiotic nature of SU Lyn went unnoticed until now, because it does not exhibit emission lines strong enough to be obvious in low resolutionspectra. We argue that symbiotic stars without shell-burning have weak emission lines, and that the current lists of symbiotic stars are biased in favour of shell-burning systems. We conclude that the true population of symbiotic stars has been underestimated, potentially by a large factor.
publishDate 2016
dc.date.none.fl_str_mv 2016-05-05
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/11336/18304
Mukai, K.; Luna, Gerardo Juan Manuel; Cusumano, G.; Segreto, A.; Munari, U.; et al.; SU Lyncis, a hard X-ray bright M giant: clues point to a large hidden population of symbiotic stars; Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 461; 1; 5-5-2016; L1-L5
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/18304
identifier_str_mv Mukai, K.; Luna, Gerardo Juan Manuel; Cusumano, G.; Segreto, A.; Munari, U.; et al.; SU Lyncis, a hard X-ray bright M giant: clues point to a large hidden population of symbiotic stars; Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 461; 1; 5-5-2016; L1-L5
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/url/https://academic.oup.com/mnrasl/article-abstract/461/1/L1/2589550/SU-Lyncis-a-hard-X-ray-bright-M-giant-clues-point?redirectedFrom=fulltext
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnrasl/slw087
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 Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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 13.070432

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