COSMIC-RAY INDUCED PHOTONS IN DENSE INTERSTELLAR CLOUDS

被引：89

作者：

CECCHIPESTELLINI, C

AIELLO, S

机构：

[1] Dipartimento di Astronomia e Scienza dello Spazio, Università degli Studi di Firenze, Largo Enrico Fermi 5, Florence

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1992年 / 258卷 / 01期

关键词：

MOLECULAR PROCESSES; INTERSTELLAR MEDIUM; CLOUDS; COSMIC RAYS; DUST; EXTINCTION; ULTRAVIOLET; INTERSTELLAR;

D O I：

10.1093/mnras/258.1.125

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

High-energy particles traversing a medium dissipate their energy through a succession of collisions. Part of the energy deposited by cosmic rays inside dense clouds can be transformed into a chemically significant ultraviolet flux by the impact excitation of molecular hydrogen. Detailed calculations of the collisional coefficients are described and the resulting production of ultraviolet radiation is computed, using various assumptions regarding the dust extinction properties.

引用

页码：125 / 133

页数：9

共 46 条

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