Binarity in cool asymptotic giant branch stars: A galex search for ultraviolet excesses

5 pags., 1 fig., 3 tabs.

Detalles Bibliográficos
Autores: Sahai, R., Findeisen, K., Gil de Paz, A., Sánchez Contreras, C.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/191236
Acceso en línea:http://hdl.handle.net/10261/191236
Access Level:acceso abierto
Palabra clave:Stars: AGB and post-AGB
Circumstellar matter
Stars: mass loss
Binaries: general
Planetary nebulae: general
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spelling Binarity in cool asymptotic giant branch stars: A galex search for ultraviolet excessesSahai, R.Findeisen, K.Gil de Paz, A.Sánchez Contreras, C.Stars: AGB and post-AGBCircumstellar matterStars: mass lossBinaries: generalPlanetary nebulae: general5 pags., 1 fig., 3 tabs.The search for binarity in AGB stars is of critical importance for our understanding of how planetary nebulae acquire the dazzling variety of aspherical shapes which characterizes this class. However, detecting binary companions in such stars has been severely hampered due to their extreme luminosities and pulsations. We have carried out a small imaging survey of AGB stars in ultraviolet light (using GALEX), where these cool objects are very faint, in order to search for hotter companions. We report the discovery of significant far-ultraviolet excesses toward nine of these stars. The far-ultraviolet excess most likely results either directly from the presence of a hot binary companion or indirectly from a hot accretion disk around the companion. © 2008. The American Astronomical Society. All rights reserved.R. S.’s contribution to the research described in this publication was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. R. S. thanks NASA for financial support via a GALEX award and an LTSA award. K. F. was partially funded by a SURF scholarship and through the Cornell Presidential Research Scholars (CPRS) program. A. G. d. P. is partially financed by the Spanish Ramon y Cajal programa the Programa Nacional de Astronomıa yAstrofısica under grant AYA2006-02358. C.S.C. is partially funded for this work by the Spanish MCyT under project AYA 2006-14876 and the Spanish MEC under project PIE 200750I028.Peer ReviewedUniversity of Chicago PressCalifornia Institute of TechnologyNASAMinisterio de Ciencia y Tecnología (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920082019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/191236reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#MCyT/AYA2006-02358https://doi.org/10.1086/592559Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1912362026-05-22T06:33:51Z
dc.title.none.fl_str_mv Binarity in cool asymptotic giant branch stars: A galex search for ultraviolet excesses
title Binarity in cool asymptotic giant branch stars: A galex search for ultraviolet excesses
spellingShingle Binarity in cool asymptotic giant branch stars: A galex search for ultraviolet excesses
Sahai, R.
Stars: AGB and post-AGB
Circumstellar matter
Stars: mass loss
Binaries: general
Planetary nebulae: general
title_short Binarity in cool asymptotic giant branch stars: A galex search for ultraviolet excesses
title_full Binarity in cool asymptotic giant branch stars: A galex search for ultraviolet excesses
title_fullStr Binarity in cool asymptotic giant branch stars: A galex search for ultraviolet excesses
title_full_unstemmed Binarity in cool asymptotic giant branch stars: A galex search for ultraviolet excesses
title_sort Binarity in cool asymptotic giant branch stars: A galex search for ultraviolet excesses
dc.creator.none.fl_str_mv Sahai, R.
Findeisen, K.
Gil de Paz, A.
Sánchez Contreras, C.
author Sahai, R.
author_facet Sahai, R.
Findeisen, K.
Gil de Paz, A.
Sánchez Contreras, C.
author_role author
author2 Findeisen, K.
Gil de Paz, A.
Sánchez Contreras, C.
author2_role author
author
author
dc.contributor.none.fl_str_mv California Institute of Technology
NASA
Ministerio de Ciencia y Tecnología (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Stars: AGB and post-AGB
Circumstellar matter
Stars: mass loss
Binaries: general
Planetary nebulae: general
topic Stars: AGB and post-AGB
Circumstellar matter
Stars: mass loss
Binaries: general
Planetary nebulae: general
description 5 pags., 1 fig., 3 tabs.
publishDate 2008
dc.date.none.fl_str_mv 2008
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/191236
url http://hdl.handle.net/10261/191236
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
MCyT/AYA2006-02358
https://doi.org/10.1086/592559
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv University of Chicago Press
publisher.none.fl_str_mv University of Chicago Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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