摘要
本文发表了AP Leo的B. V两色光变曲线,并用综合光变曲线方法,对其进行了解轨分析.结论:它们为过相接双星,过相接度为23.5%,质比q=m_2/m_1=0.301;在次子星的低纬度带有一个黑子群,其平均温度比次子星低1220°K.@@@@本文收集了近九十年的极小时刻资料,经过分析,得到一个具有正弦形周期变化的极小时刻O-C图和相应极小时刻历元公式.并据此提出此星可能存在第三体的看法.
The results of the photoelectric B.V. observations of AP Leonis are presented. Photometric solutions have been carried out by using the Wilson-Devinney program. This star is found to be an over-contact binary with a over-contact degree of 23.5%. Its mass ratio q equals 0.301. Maybe there is a starspot group in the low latitude region of the second component. The average temperature of the starspot is 1220°K lower than the surface temperature of the second component. The data of minimum times in ninety years have been collected and analysed. An O-C diagram of the minimum times with period changes of sine and ephemeris is obtained. It is passible that there is a third body in the system.
出处
《天文学报》
CSCD
北大核心
1992年第2期131-138,共8页
Acta Astronomica Sinica
基金
国家自然科学基金
