蝎虎天体的射电辐射与寄主星系亮度的关系（英文）

Correlation between radio emission and host galaxy magnitude for BL Lacertae objects

选取了52个蝎虎天体,计算了它们的射电光度(包括核光度,延展光度及总光度)和寄主星系的绝对星等。分析各光度与亮度的相关知,其相关系数为0.008<|r|<0.154;当考虑射电谱指数的差异时,发现在不同的谱指数范围里,它们的相关系数为0.014<|r|<0.722。利用伽马射线多普勒因子(ΔT=6 h),计算了本征光度Lcin和Ltin,发现它们与寄主星系绝对星等相关的相关系数分别为0.093与?0.341。

52 BL Lacs are collected, and the radio luminosity of BL Lacs(including the core, extended and total luminosity) and the absolute magnitude of host galaxies are calculated. The results of the correlations between luminosities and absolute magnitude show that their correlation coefficients are 0.008 < |r| < 0.154. When the radio spectral index is considered, the correlation coefficients are 0.014 < |r| < 0.722 in different range of the radio spectral index. The intrinsic luminosity Lcin and Ltin are calculated using the derived lower limit for the γ-ray Doppler factor(ΔT = 6 h), and find their correlation coefficients of relations between intrinsic luminosities and the absolute magnitude of host galaxies are 0.093 and ?0.341.