تقرير
The eclipsing post-common envelope binary CSS21055: a white dwarf with a probable brown-dwarf companion
العنوان: | The eclipsing post-common envelope binary CSS21055: a white dwarf with a probable brown-dwarf companion |
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المؤلفون: | Beuermann, K., Dreizler, S., Hessman, F. V., Backhaus, U., Boesch, A., Husser, T. -O., Nortmann, L., Schmelev, A., Springer, R. |
المصدر: | Astronomy & Astrophysics 10/2013, Volume 558, id.A96, 6 pp |
سنة النشر: | 2013 |
المجموعة: | Astrophysics |
مصطلحات موضوعية: | Astrophysics - Solar and Stellar Astrophysics |
الوصف: | We report photometric observations of the eclipsing close binary CSS21055 (SDSS J141126+200911) that strongly suggest that the companion to the carbon-oxygen white dwarf is a brown dwarf with a mass between 0.030 and 0.074 Msun. The measured orbital period is 121.73min and the totality of the eclipse lasts 125s. If confirmed, CSS21055 would be the first detached eclipsing WD+BD binary. Spectroscopy in the eclipse could provide information about the companion's evolutionary state and atmospheric structure. Comment: 6 pages, 5 figures |
نوع الوثيقة: | Working Paper |
DOI: | 10.1051/0004-6361/201322241 |
URL الوصول: | http://arxiv.org/abs/1312.5088 |
رقم الأكسشن: | edsarx.1312.5088 |
قاعدة البيانات: | arXiv |
DOI: | 10.1051/0004-6361/201322241 |
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