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: | , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2001
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| Materias: | |
| 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: |
| Sumario: | 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. |
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