The long-term behaviour of optical variability of NGC 4151

被引:7
|
作者
Fan, JH [1 ]
Su, CY
机构
[1] Guangzhou Normal Coll, Dept Phys, Guangzhou 510400, Peoples R China
[2] Guangzhou Ind Univ, Dept Phys, Guangzhou 510643, Peoples R China
关键词
optical variability; period; NGC; 4151;
D O I
10.1016/S0275-1062(99)00022-3
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We collected nearly 90 years of data of NGC 4151 and used Jurkevich's method to analyze its light variation. A long period of 14.04 +/- 0.8 yr exists in the light variation and there is strong correlation between its spectral type and brightness.
引用
收藏
页码:22 / 26
页数:5
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