Superhumps in the helium dwarf nova KL Draconis

被引：27
作者：
Wood, MA [1 ]
Casey, MJ
Garnavich, PM
Haag, B
机构：
[1] Florida Inst Technol, Dept Phys & Space Sci, Melbourne, FL 32901 USA
[2] Florida Inst Technol, SARA Observ, Melbourne, FL 32901 USA
[3] Iowa State Univ, Dept Phys & Astron, Ames, IA 50014 USA
[4] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA
[5] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2002年 / 334卷 / 01期
关键词：
accretion; accretion discs; binaries : close; stars : dwarf novae; stars : individual : KL Dra; novae; cataclysmic variables;
D O I：
10.1046/j.1365-8711.2002.05484.x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report on the discovery of a 25.5-min superhump period for the suspected helium dwarf nova system KL Draconis in a high state. The presence of superhumps combined with the previously observed helium spectrum and large-amplitude photometric variations confirm that KL Dra is an AM CVn system similar to CR Bootis, V803 Cen and CP Eridani. We also find a low-state photometric period at 25.0 min that we suggest may be the orbital period. With this assumption, we estimate q =0.075, M-1 =0.76 M-. and M-2 =0.057 M-..
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页码：87 / 93
页数：7
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