Absolute properties of the triple star CF Tauri

CF Tau is now known to be an eclipsing triple star with relatively deep total and annular eclipses. New light and radial velocity curves as well as new times of minima were obtained and used for further modeling of the system. Very accurate (better than 0.9%) masses and radii of the eclipsing pair a...

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Detalles Bibliográficos
Autores: Sandberg Lacy, Claud H., Torres, Guillermo, Claret, Antonio
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2012
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/417180
Acceso en línea:http://hdl.handle.net/10261/417180
Access Level:acceso abierto
Palabra clave:Binaries: eclipsing
Binaries: spectroscopic
Stars: fundamental parameters
Stars: individual (CF Tau)
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spelling Absolute properties of the triple star CF TauriSandberg Lacy, Claud H.Torres, GuillermoClaret, AntonioBinaries: eclipsingBinaries: spectroscopicStars: fundamental parametersStars: individual (CF Tau)CF Tau is now known to be an eclipsing triple star with relatively deep total and annular eclipses. New light and radial velocity curves as well as new times of minima were obtained and used for further modeling of the system. Very accurate (better than 0.9%) masses and radii of the eclipsing pair are determined from analysis of the two new light curves, the radial velocity curve, and the times of minimum light. The mass and luminosity of the distant third component is accurately determined as well. Theoretical models of the detached, evolved eclipsing pair match the observed absolute properties of the stars at an age of about 4.3Gyr and [Fe/H] = -0.14. © 2012. The American Astronomical Society. All rights reserved..The authors thank Bill Neely who operates and maintains the NFO WebScope for the Consortium, and who handles preliminary processing of the images and their distribution. We are grateful to P. Berlind, M. Calkins, R. Davis, G. Esquerdo, T. Fleming, E. Horine, D. Latham, L. Marshall, R. Mathieu, J. Peters, and R. Stefanik for help in obtaining the spectroscopic observations used here. G.T. acknowledges partial support for this work from NSF grant AST-10–07992.Peer reviewedIOP PublishingNational Science Foundation (US)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/417180reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1088/0004-6256/144/6/167Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4171802026-05-22T06:33:51Z
dc.title.none.fl_str_mv Absolute properties of the triple star CF Tauri
title Absolute properties of the triple star CF Tauri
spellingShingle Absolute properties of the triple star CF Tauri
Sandberg Lacy, Claud H.
Binaries: eclipsing
Binaries: spectroscopic
Stars: fundamental parameters
Stars: individual (CF Tau)
title_short Absolute properties of the triple star CF Tauri
title_full Absolute properties of the triple star CF Tauri
title_fullStr Absolute properties of the triple star CF Tauri
title_full_unstemmed Absolute properties of the triple star CF Tauri
title_sort Absolute properties of the triple star CF Tauri
dc.creator.none.fl_str_mv Sandberg Lacy, Claud H.
Torres, Guillermo
Claret, Antonio
author Sandberg Lacy, Claud H.
author_facet Sandberg Lacy, Claud H.
Torres, Guillermo
Claret, Antonio
author_role author
author2 Torres, Guillermo
Claret, Antonio
author2_role author
author
dc.contributor.none.fl_str_mv National Science Foundation (US)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Binaries: eclipsing
Binaries: spectroscopic
Stars: fundamental parameters
Stars: individual (CF Tau)
topic Binaries: eclipsing
Binaries: spectroscopic
Stars: fundamental parameters
Stars: individual (CF Tau)
description CF Tau is now known to be an eclipsing triple star with relatively deep total and annular eclipses. New light and radial velocity curves as well as new times of minima were obtained and used for further modeling of the system. Very accurate (better than 0.9%) masses and radii of the eclipsing pair are determined from analysis of the two new light curves, the radial velocity curve, and the times of minimum light. The mass and luminosity of the distant third component is accurately determined as well. Theoretical models of the detached, evolved eclipsing pair match the observed absolute properties of the stars at an age of about 4.3Gyr and [Fe/H] = -0.14. © 2012. The American Astronomical Society. All rights reserved..
publishDate 2012
dc.date.none.fl_str_mv 2012
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/417180
url http://hdl.handle.net/10261/417180
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1088/0004-6256/144/6/167
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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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