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

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 th...

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Autores principales: Niemelä, Virpi Sinikka, Seggewiss, Wilhem, Moffat, Anthony
Formato: Articulo
Lenguaje:Inglés
Publicado: 2001
Materias:
Ciencias Astronómicas
astrofísica
galaxies: individual: LMC; stars: binaries: general; stars: early-type; stars: individual: Sk -67°18
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/2069
http://www.aanda.org/index.php?option=com_article&access=standard&Itemid=129&url=/articles/aa/full/2001/14/aa10327/aa10327.html
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-2069
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
astrofísica
galaxies: individual: LMC; stars: binaries: general; stars: early-type; stars: individual: Sk -67°18
spellingShingle Ciencias Astronómicas
astrofísica
galaxies: individual: LMC; stars: binaries: general; stars: early-type; stars: individual: Sk -67°18
Niemelä, Virpi Sinikka
Seggewiss, Wilhem
Moffat, Anthony
The nature of Sk -67º 18 in the Large Magellanic Cloud: a multiple system with an O3f* component
topic_facet Ciencias Astronómicas
astrofísica
galaxies: individual: LMC; stars: binaries: general; stars: early-type; stars: individual: Sk -67°18
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.
format Articulo
Articulo
author Niemelä, Virpi Sinikka
Seggewiss, Wilhem
Moffat, Anthony
author_facet Niemelä, Virpi Sinikka
Seggewiss, Wilhem
Moffat, Anthony
author_sort Niemelä, Virpi Sinikka
title The nature of Sk -67º 18 in the Large Magellanic Cloud: a multiple system with an O3f* component
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 nature of sk -67º 18 in the large magellanic cloud: a multiple system with an o3f* component
publishDate 2001
url http://sedici.unlp.edu.ar/handle/10915/2069
http://www.aanda.org/index.php?option=com_article&access=standard&Itemid=129&url=/articles/aa/full/2001/14/aa10327/aa10327.html
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