The 1994 super-outburst of the New SW UMa-type dwarf nova SX Leonis Minoris

被引:43
作者
Nogami, D
Masuda, S
Kato, T
机构
[1] Department of Astronomy, Faculty of Science, Kyoto University, Kyoto 606-01, Sakyo-ku
关键词
D O I
10.1086/133983
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present observations of SX LMi during the 1994 long outburst at Ouda Station. Superhumps, with a period of 0.06950 (+/-0.00002) d, are detected. This confirms SX LMi asa new member of the SU UMa-type dwarf novae. We measured the recurrence cycle of normal outbursts and super-outbursts to be about 35 d and 250 d, respectively, from outburst records by RoboScope (Indiana University) and amateur observers. These recurrence cycles are typical values for usual SU UMa stars, However, the outburst amplitude ( similar to 3.8 mag) of SX LMi is small for SU UMa stars and close to those of ER UMa stars, This small outburst amplitude might be understood if the viscosity at quiescence sind the mass-transfer rate are slightly high in SX LMi.
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页码:1114 / 1121
页数:8
相关论文
共 157 条
[1]  
AUGUSTEIJN T, 1994, ASTRON ASTROPHYS, V292, P481
[2]  
BABA H, 1997, UNPUB PASJ
[3]   DWARF NOVAE WX-HYI AND V436-CEN [J].
BAILEY, J .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1979, 188 (03) :681-686
[4]  
Bateson F. M., 1988, Vistas in Astronomy, V31, P301, DOI 10.1016/0083-6656(88)90216-4
[5]   A MICROWAVE SURVEY OF MAGNETIC CATACLYSMIC VARIABLES [J].
BEASLEY, AJ ;
BASTIAN, TS ;
BALL, L ;
WU, K .
ASTRONOMICAL JOURNAL, 1994, 108 (06) :2207-2211
[6]   A VISIBLE AND INFRARED STUDY OF THE ECLIPSING DWARF NOVA OY-CARINAE .2. THE INFRARED LIGHT CURVES [J].
BERRIMAN, G .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1984, 210 (01) :223-237
[7]   RZ SAGITTAE - A NEW SU URSAE MAJORIS TYPE DWARF NOVA [J].
BOND, HE ;
KEMPER, E ;
MATTEI, JA .
ASTROPHYSICAL JOURNAL, 1982, 260 (02) :L79-L82
[8]  
BRUCH A, 1994, ASTRON ASTROPHYS SUP, V104, P79
[9]  
BRUCH A, 1983, 2287 IBVS
[10]  
BRUCH A, 1983, 2286 IBVS