INTERNAL ABSORPTION IN SPIRAL GALAXIES

被引：19

作者：

CUNOW, B

机构：

[1] Astronomisches Institut der Westfälischen Wilhelms-Universität, Wilhelm-Klemm-Str. 10, Münster

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1992年 / 258卷 / 02期

关键词：

DUST; EXTINCTION; GALAXIES INTERSTELLAR MATTER; GALAXIES PHOTOMETRY GALAXIES SPIRAL;

D O I：

10.1093/mnras/258.2.251

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A sample of 15 000 faint spiral galaxies is used for the statistical determination of internal absorption by investigating the projected surface brightness. Analyses with different disc models yield small absorption values. For a more realistic three-component model, however, a central face-on optical depth of tau-0 = 7 is obtained, which is in agreement with suggestions that spiral galaxies are not optically thin.

引用

页码：251 / 256

页数：6

共 24 条

[1] THE APPARENT AND TRUE ELLIPTICITIES OF GALAXIES OF DIFFERENT HUBBLE TYPES IN THE 2ND REFERENCE CATALOG [J].