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 |
| الوصول الحر: | http://arxiv.org/abs/1312.5088Test |
| رقم الانضمام: | edsarx.1312.5088 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1051/0004-6361/201322241 |
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