TIME-DEPENDENT FLUORESCENT H-2 EMISSION

被引：45

作者：

GOLDSHMIDT, O

STERNBERG, A

机构：

[1] School of Physics and Astronomy, Tel Aviv University

来源：

ASTROPHYSICAL JOURNAL | 1995年 / 439卷 / 01期

关键词：

ISM; MOLECULES; MOLECULAR PROCESSES; PLANETARY NEBULAE; GENERAL; RADIATIVE TRANSFER;

D O I：

10.1086/175168

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present computations of the time-dependent infrared fluorescent emission-line response of molecular hydrogen (H-2) gas in interstellar clouds exposed to far-ultraviolet radiation fields. In clouds exposed to intense fields the H-2 line intensities may be much larger at early times immediately following the onset of irradiation than under conditions of static equilibrium. Time-dependent effects in evolving photon-dominated regions may be important in the fluorescent H-2 emitting regions in planetary and reflection nebulae and possibly in starburst galaxies and active galactic nuclei.

引用

页码：256 / 263

页数：8

共 51 条

[1]

ABGRALL H, 1992, A A, V265, P403

[2]

Allison A. C., 1970, Atomic Data, V1, P289

[3]

BACHILLER R, 1989, ASTRON ASTROPHYS, V218, P252

[4] FLUORESCENT EXCITATION OF INTERSTELLAR H2 [J].