椭圆星系尘埃与气体的分布
天体物理学
2016-01-27 v1
摘要
我们检讨了 IRAS 和近期光学 CCD 调查结果，以讨论椭圆星系尘埃和离子化气体的分布及来源。与旋星系的情况形成鲜明对比，椭圆星系从光学消光推导的尘埃质量约为 IRAS 数据推导的尘埃质量的一个数量级更低。我通过假设椭圆星系存在一分布均匀的尘埃成分，该成分在光学数据中不可检测，从而解决了这一困境。尘埃带的形态及其与离子化气体的关联，论证了 ISM 两种组成部分都来自外部。
引用
@article{arxiv.astro-ph/9601169,
title = {The Distribution of Dust and Gas in Elliptical Galaxies},
author = {Paul Goudfrooij},
journal= {arXiv preprint arXiv:astro-ph/9601169},
year = {2016}
}
备注
Invited talk given at conference on "NEW EXTRAGALACTIC PERSPECTIVES IN THE NEW SOUTH AFRICA: Changing Perceptions of the Morphology, Dust Content and Dust-Gas Ratios in Galaxies", Held in Johannesburg, South Africa, during January 22-26, 1996. Proceedings will be edited by D.L. Block and published by Kluwer, Dordrecht, The Netherlands. uuencoded, gzipped LaTeX file of 8 pages; figures included as PostScript files (enclosed). Uses crckapb.sty (enclosed) and psfig.sty