THE INTERNAL EXTINCTION IN SPIRAL GALAXIES

被引：34

作者：

HAN, MS ^{[1
]}

机构：

[1] CALTECH,PALOMAR OBSERV,PASADENA,CA 91125

来源：

ASTROPHYSICAL JOURNAL | 1992年 / 391卷 / 02期

关键词：

DUST; EXTINCTION; GALAXIES; INTERSTELLAR MATTER; PHOTOMETRY;

D O I：

10.1086/171375

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the results of CCD surface photometry for a sample of 284 spiral galaxies, we reinvestigate the problem of internal extinction. Empirical formulae for the face-on correction of isophotal diameter, the I-band magnitude, and the V-I color are derived. It is pointed out that the integrated absorption in a galaxy does not follow the extinction law that applies to individual stars in the galaxy, a simple fact which has been overlooked by many investigators.

引用

收藏

页码：617 / 622

页数：6

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