A dwarf nova in taurus

被引：0
|
作者：
Parsamian E.A. [1 ]
Gonzáles G. [2 ]
Ohanian G.B. [1 ]
机构：
[1] National Institute of Astrophysics, Optics, and Electronics (INAOE), Mexico
来源：
Astrophysics | 1999年 / 42卷 / 1期
关键词：
Flare; Light Curve; Recurrence Time; Photographic Plate; Stellar Magnitude;
D O I：
10.1007/BF02700911
中图分类号：
学科分类号：
摘要：
In searchs for flare stars in the vicinity of the Pleiades cluster, three flares were detected in 1970, 1972, and 1977 in a star with the coordinates α1950=3h48m.9, δ1950 = 25° 15′.8. The star's brightness at a minimum is >21m.5. The star was tentatively assigned to the U Gem type. To confirm this assumption, we examined photographic plates for the period of 1947-1987. As a result, we found 12 more flares. The average recurrence time based on the 1963-1977 observations is about 330 days, and the maximum flare amplitude is >6m. Narrow superflares and steady-state flares lasting over 40 days have been observed in the star. The results show that this is a dwarf nova of the UGSU subtype. © 1999 Kluwer Academic/Plenum Publishers.
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页码：33 / 36
页数：3
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