HV Virginis and WZ Sge-type dwarf novae

被引：85
作者：
Kato, T [1 ]
Sekine, Y [1 ]
Hirata, R [1 ]
机构：
[1] Kyoto Univ, Dept Astron, Sakyo Ku, Kyoto 6068502, Japan
来源：
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2001年 / 53卷 / 06期
关键词：
accretion; accretion disks; stars : dwarf novae; stars : individual (HV Virginis); stars; novae; cataclysmic variables;
D O I：
10.1093/pasj/53.6.1191
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A dwarf nova HV Vir was observed photometrically for eight nights during an outburst in 1992 April-May. The star showed two distinct types of periodic variation: (1) 82.20-min (0.05708 d) double-humped variation with decaying amplitudes during the early stage of the outburst, and (2) 83.80-min (0.05820 d) superhumps in later stages. We attributed the former to "early superhumps", which are only seen in the earliest stage of WZ Sge-type outbursts. The superhump period and evolution of the superhumps, together with general characteristics of the light curve, make HV Vir a typical WZ Sge-type dwarf nova. HV Vir also showed a large increase of the superhump period during the superoutburst. Upon recognizing the WZ Sge-type nature of an object previously considered as a nova, we present a comprehensive list of candidates for WZ Sge-type dwarf novae and related systems.
引用
收藏
页码：1191 / 1210
页数：20
相关论文
共 435 条
[1]  
Abbott TMC, 1997, ASTRON ASTROPHYS, V318, P134
[2]   2 UNUSUAL CATACLYSMIC VARIABLES AT HIGH GALACTIC LATITUDE - CP ERIDANI AND AL COMAE [J].
ABBOTT, TMC ;
ROBINSON, EL ;
HILL, GJ ;
HASWELL, CA .
ASTROPHYSICAL JOURNAL, 1992, 399 (02) :680-685
[3]  
Abrahamian H. V., 1996, Astrophysics, V39, P315, DOI 10.1007/BF02077201
[4]  
AKSENOV EP, 1983, 3869 IAU
[5]  
ALBITZKY B, 1929, ASTRON NACHR, V235, P317
[6]  
ALKSNIS A, 1981, INF B VARIABLE STARS, V1972
[7]  
ALKSNIS A, 2000, INF B VARIABLE STARS, V4909
[8]  
ALTIZER R, 1972, 2381 IAU
[9]  
ANDERSON JH, 1967, 2011 IAU
[10]  
[Anonymous], 1985, GEN CATALOGUE VARIAB
12345678910