摘要
给出的 2 3个BLLac天体的Hβ发射线光度分布呈现双峰结构 ,研究表明 :对于Hβ发射线光度大于 1 0 4 1ergs- 1的BLLac天体 ,其中央黑洞吸积盘很可能是标准盘。而对于Hβ发射线光度小于 1 0 4 1ergs- 1的BLLac天体 ,其中央黑洞吸积流已从标准盘转变为ADAF .本文提出了一种估计BLLac天体中央黑洞质量的新方法。
The distribution of the line luminosity L Hβ of 23 BL Lac objects suggests a bimodal nature. We found that standard thin disks probably reside in the sources with L Hβ >10 41 erg s 1 . For the sources with L Hβ <10 41 erg s 1 , the accretion flows have transited from the standard thin disk type to the ADAF type. We propose a new method to estimate the masses of the central black holes in BL Lac objects.
出处
《天文研究与技术》
CSCD
北大核心
2003年第S1期131-135,共5页
Astronomical Research & Technology