IONIZATION EQUILIBRIUM AND SPECTRUM FORMATION IN QSOS ABSORPTION REGIONS

被引：0
|
作者：
VERNER, DA
YAKOVLEV, DG
机构：
[1] A.F. Ioffe Institute of Physics and Technology, Leningrad
来源：
ASTROPHYSICS AND SPACE SCIENCE | 1990年 / 171卷 / 1-2期
关键词：
D O I：
10.1007/BF00646830
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A new and rather compact code LINESPEC is developed to calculate the absorption line spectra formed due to passage of continuous radiation (from a quasar) through a layer of a hot (T≥104 K) and rarefied (N≪1014 cm-3) plasma in the state of steady kinetic (collisional+photo) ionization equilibrium. Illustrative calculations show that the spectra are very sensitive to T and to the ratio of number densities of ionizing photons and particles. © 1990 Kluwer Academic Publishers.
引用
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页码：121 / 124
页数：4
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