The nature of Sk -67º 18 in the Large Magellanic Cloud: a multiple system with an O3f* component

Autores
Niemelä, Virpi Sinikka; Seggewiss, Wilhem; Moffat, Anthony
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the results of photometric and spectroscopic observations obtained between 1980 and 1996, which show that the bright star Sk-6718 in the Large Magellanic Cloud (LMC) is a multiple star which contains an eclipsing binary system. Our spectra show that this is an Of + O type binary, where the primary is probably of type O3f*. The orbital period of the eclipsing binary is almost exactly 2 days, which considerably compromises the obtaining of data with suitable phase coverage. Furthermore, from our radial velocity analysis of the spectral lines, Sk-6718 appears to be a multiple system consisting of at least two pairs of short-period binaries.
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Ciencias Astronómicas
astrofísica
galaxies: individual: LMC; stars: binaries: general; stars: early-type; stars: individual: Sk -67°18
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/2069
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/2069
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling The nature of Sk -67º 18 in the Large Magellanic Cloud: a multiple system with an O3f* componentNiemelä, Virpi SinikkaSeggewiss, WilhemMoffat, AnthonyCiencias Astronómicasastrofísicagalaxies: individual: LMC; stars: binaries: general; stars: early-type; stars: individual: Sk -67°18We present the results of photometric and spectroscopic observations obtained between 1980 and 1996, which show that the bright star Sk-6718 in the Large Magellanic Cloud (LMC) is a multiple star which contains an eclipsing binary system. Our spectra show that this is an Of + O type binary, where the primary is probably of type O3f*. The orbital period of the eclipsing binary is almost exactly 2 days, which considerably compromises the obtaining of data with suitable phase coverage. Furthermore, from our radial velocity analysis of the spectral lines, Sk-6718 appears to be a multiple system consisting of at least two pairs of short-period binaries.Facultad de Ciencias Astronómicas y Geofísicas2001info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf544-551http://sedici.unlp.edu.ar/handle/10915/2069enginfo:eu-repo/semantics/altIdentifier/url/http://www.aanda.org/index.php?option=com_article&access=standard&Itemid=129&url=/articles/aa/full/2001/14/aa10327/aa10327.htmlinfo:eu-repo/semantics/altIdentifier/issn/1432-0746info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20010122info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T10:48:37Zoai:sedici.unlp.edu.ar:10915/2069Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 10:48:38.953SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv The nature of Sk -67º 18 in the Large Magellanic Cloud: a multiple system with an O3f* component
title The nature of Sk -67º 18 in the Large Magellanic Cloud: a multiple system with an O3f* component
spellingShingle The nature of Sk -67º 18 in the Large Magellanic Cloud: a multiple system with an O3f* component
Niemelä, Virpi Sinikka
Ciencias Astronómicas
astrofísica
galaxies: individual: LMC; stars: binaries: general; stars: early-type; stars: individual: Sk -67°18
title_short The nature of Sk -67º 18 in the Large Magellanic Cloud: a multiple system with an O3f* component
title_full The nature of Sk -67º 18 in the Large Magellanic Cloud: a multiple system with an O3f* component
title_fullStr The nature of Sk -67º 18 in the Large Magellanic Cloud: a multiple system with an O3f* component
title_full_unstemmed The nature of Sk -67º 18 in the Large Magellanic Cloud: a multiple system with an O3f* component
title_sort The nature of Sk -67º 18 in the Large Magellanic Cloud: a multiple system with an O3f* component
dc.creator.none.fl_str_mv Niemelä, Virpi Sinikka
Seggewiss, Wilhem
Moffat, Anthony
author Niemelä, Virpi Sinikka
author_facet Niemelä, Virpi Sinikka
Seggewiss, Wilhem
Moffat, Anthony
author_role author
author2 Seggewiss, Wilhem
Moffat, Anthony
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
astrofísica
galaxies: individual: LMC; stars: binaries: general; stars: early-type; stars: individual: Sk -67°18
topic Ciencias Astronómicas
astrofísica
galaxies: individual: LMC; stars: binaries: general; stars: early-type; stars: individual: Sk -67°18
dc.description.none.fl_txt_mv We present the results of photometric and spectroscopic observations obtained between 1980 and 1996, which show that the bright star Sk-6718 in the Large Magellanic Cloud (LMC) is a multiple star which contains an eclipsing binary system. Our spectra show that this is an Of + O type binary, where the primary is probably of type O3f*. The orbital period of the eclipsing binary is almost exactly 2 days, which considerably compromises the obtaining of data with suitable phase coverage. Furthermore, from our radial velocity analysis of the spectral lines, Sk-6718 appears to be a multiple system consisting of at least two pairs of short-period binaries.
Facultad de Ciencias Astronómicas y Geofísicas
description We present the results of photometric and spectroscopic observations obtained between 1980 and 1996, which show that the bright star Sk-6718 in the Large Magellanic Cloud (LMC) is a multiple star which contains an eclipsing binary system. Our spectra show that this is an Of + O type binary, where the primary is probably of type O3f*. The orbital period of the eclipsing binary is almost exactly 2 days, which considerably compromises the obtaining of data with suitable phase coverage. Furthermore, from our radial velocity analysis of the spectral lines, Sk-6718 appears to be a multiple system consisting of at least two pairs of short-period binaries.
publishDate 2001
dc.date.none.fl_str_mv 2001
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/2069
url http://sedici.unlp.edu.ar/handle/10915/2069
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.aanda.org/index.php?option=com_article&access=standard&Itemid=129&url=/articles/aa/full/2001/14/aa10327/aa10327.html
info:eu-repo/semantics/altIdentifier/issn/1432-0746
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20010122
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.format.none.fl_str_mv application/pdf
544-551
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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