Contamination of RR Lyrae stars from Binary Evolution Pulsators
A Binary Evolution Pulsator (BEP) is a low-mass (0.26Mꙩ ) member of a binary system, which pulsates as a result of a former mass transfer to its companion. The BEP mimics RR Lyrae-type pulsations, but has completely different internal structure and evolution history. Although there is only one known...
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| Veröffentlicht in: | Advances in Astronomy and Space Physics |
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| Datum: | 2015 |
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| Format: | Artikel |
| Sprache: | Englisch |
| Veröffentlicht: |
Головна астрономічна обсерваторія НАН України
2015
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/119821 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Contamination of RR Lyrae stars from Binary Evolution Pulsators / P. Karczmarek // Advances in Astronomy and Space Physics. — 2015. — Т. 5., вип. 1. — С. 24-28. — Бібліогр.: 7 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | A Binary Evolution Pulsator (BEP) is a low-mass (0.26Mꙩ ) member of a binary system, which pulsates as a result of a former mass transfer to its companion. The BEP mimics RR Lyrae-type pulsations, but has completely different internal structure and evolution history. Although there is only one known BEP (OGLE-BLG-RRLYR-02792), it has been estimated that approximately 0.2% of objects classified as RR Lyrae stars can be undetected Binary Evolution Pulsators. In the present work, this contamination value is re-evaluated using the population synthesis method. The output falls inside a range of values dependent on tuning the parameters in the StarTrack code, and varies from 0.06% to 0.43%
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| ISSN: | 2227-1481 |