CERENKOV REDSHIFTS OF BALMER LINES IN QUASARS

Based on the Cerenkov line-emission theory, this paper estimates the Cerenkov red-shifts of Balmer lines and gives a better explanation of the observations, that is, the high-ionization broad emission lines of quasars are blueshifted with respect to the neutral hy-drogen and the low-ionization broad lines.

类星体HⅠ谱线的切仑柯夫红移与线强比I(Lyα)/I(Hβ)的关系

在切仑柯夫线发射理论的框架下,本文统一地讨论了类星体HI谱线的切合柯夫红移与线强比I(Lyα)/I(Hβ)之间的内在关系。忽略类星体宽线区气云外层光薄区中HI复合线的贡献,利用观测到的Lyα线相对于CIV线的相对红移,即切金柯夫红移,定出第二能级上粒子数布居R_2～0.02,利用观测的〈I(Hα)/I(Hβ)〉值定出参量x_β～14.0。在给定参量T～11000K时,HI的巴尔末线的切仑柯夫红移与线强比I(Lyα)/I(Hβ)同时与观测值相符甚佳,这对切仑柯夫线发射理论是一个有力的支持。