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Автор Wei, Jian-Yan
Автор Jiang, Xiao-Jun
Автор Zhou, Da-Wei Xu,Ai-Ying
Автор Hu, Jing-Yao
Дата выпуска 2001-12-01
dc.description 1RXS J232953.9+062814 was identified as a cataclysmic variable by Wei et al. (1999). Four low-resolution spectra of 1RXS J232953.9+062814 were obtained with the 2.16-m telescope of the National Astronomical Observatories, of which two were at outburst, and two were at quiescence. The system is about 16.8 B and 16.5 V at quiescence, and 12.6 B and 12.6 V at outburst. The quiescent spectra were dominated by double-peaked Balmer emissions, which indicates a hydrogen-rich system with a high-inclination accretion disc. MgH and TiO absorption bands appeared in the quiescent spectrum which implies a companion with a spectral type of early M dwarf. If we take it as an M0 dwarf, then the system is located at a distance of 350 pc with a proper motion velocity 150 km s<sup>−1</sup>. The superhump period of 0.046311 days was confirmed by our V photometry. The short period and the hydrogen-rich nature reveal that this system is another SU Ursae Majoris-type dwarf nova below the period minimum after V485 Centauri. 1RXS J232953.9+062814 is one of the most important systems for studying the evolutionary scenario of cataclysmic variables since it is much brighter than V485 Cen.
Формат application.pdf
Издатель Institute of Physics Publishing
Копирайт © 2001 IOP Publishing Ltd
Название 1RXS J232953.9+062814: a New SU UMa Dwarf Nova below the Period Minimum
Тип paper
DOI 10.1088/1009-9271/1/6/483
Print ISSN 1009-9271
Журнал Chinese Journal of Astronomy and Astrophysics
Том 1
Первая страница 483
Последняя страница 486
Аффилиация Wei, Jian-Yan; National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
Аффилиация Jiang, Xiao-Jun; National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
Аффилиация Zhou, Da-Wei Xu,Ai-Ying; National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
Аффилиация Hu, Jing-Yao; National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
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