تقرير
Sample of Cataclysmic Variables from 400d X-ray Survey
| العنوان: | Sample of Cataclysmic Variables from 400d X-ray Survey |
|---|---|
| المؤلفون: | Burenin, R., Revnivtsev, M., Tkachenko, A., Vorobyev, V., Semena, A., Meshcheryakov, A., Dodonov, S., Eselevich, M., Pavlinsky, M. |
| سنة النشر: | 2016 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: | We present a sample of eight cataclysmic variables (CVs) identified among the X-ray sources of the 400 square degree (400d) X-ray ROSAT/PSPC survey. Based on this sample, we have obtained preliminary constraints on the X-ray luminosity function of CVs in the solar neighbourhood in the range of low luminosities, L_X=~1e29-1e30 erg/s (0.5-2 keV). We show that the logarithmic slope of the CV luminosity function in this luminosity range is less steep than that at L_X>1e31 erg/s. Our results show that of order of thousand CVs will be detected in the SRG/eROSITA all-sky survey at high Galactic latitudes, which will allow to obtain much more accurate measurements of their X-ray luminosity function. Comment: To appear in the Proceedings of "Stars: from collapse to collapse", October 2016, Nizhnij Arkhyz, Russia |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1612.08407 |
| رقم الأكسشن: | edsarx.1612.08407 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |