Cool Dense Gas in Early-Type Galaxies

被引：0
|
作者：
C. Henkel
T. Wiklind
机构：
[1] Max-Planck-Institut für Radioastronomie,
[2] Onsala Space Observatory,undefined
来源：
Space Science Reviews | 1997年 / 81卷
关键词：
Dust; Massive Star; Systematic Comparison; Observational Result; Nuclear Region;
D O I：
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中图分类号：
学科分类号：
摘要：
CO observations have shown that many lenticular and elliptical galaxies contain significant amounts of cool dense gas. This review summarizes the observational results related to the neutral gas phase and presents a systematic comparison with other interstellar and stellar data. The discovery of very dense molecular gas in the nuclear regions of early-type galaxies, the possible existence of a dust component neither seen optically nor in CO, internal inconsistencies of cooling flow scenarios, the origin of the cool gas, the presence of massive stars, aspects of galaxy evolution, and possibilities for future research are discussed in the light of the new data.
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页码：1 / 105
页数：104
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