摘要
收集了91个BL Lac天体样本的X射线资料,其中62个高峰频BL天体—HBLs,29个低峰频BL天体—LBLs.计算了它们的X波段光度,研究了它们的X射线谱指数αX与光度LX的关系.结果表明:HBLs的谱指数αX与光度值LX无相关,而LBLs的谱指数αX与光度值LX有较弱相关性.
An X-ray data sample of 91 BL Lac objects is collected, in which, there are 62 HBLs(High-peak frequency BL Lacs) and 29 LBLs(Low-peak frequency BL Lacs). Based on the sample, the X-ray luminosities are calculated and the correlation between the αX(X-ray spectral indices) and LX(X-ray luminosities) is studied. The results show that αX are not correlative with LX for HBLs, while αX are marginally correlative with LX for LBLs.
出处
《湖南文理学院学报（自然科学版）》
CAS
2014年第3期15-19,共5页
Journal of Hunan University of Arts and Science(Science and Technology)
基金
国家自然科学基金(NSFC 11173009)
珠江学者(GDUPS-2009)
羊城学者(10A027S)
