Multiple and strong luminosity evolution in the population of elliptical galaxies

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	Multiple and strong luminosity evolution in the population of elliptical galaxies
	He, P ; Zhang, YZ
	1999-07-30
发表期刊	COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN	0253-6102
卷号	32 期号:1 页码:155-160
摘要	The traditional single burst and passive evolution model for elliptical galaxies should not be accepted. In this paper we demonstrate further by comparison of the model predictions with the observed B-X color distribution of galaxies, that the internal extinction by dust cannot save the traditional scenario for ellipticals either. Hence we do not agree with Zepf's (S.E. Zepf, Nature 390 (1997) 377) argument that such a scenario could still survive if ellipticals might have formed in dusty starburst environments. Furthermore, we have also found that the luminosity evolution within the population of ellipticals should be strong, complicated or multiple, which is not favored by our previous study of number counts for ellipticals. The conflicting results simply suggest that the pure luminosity evolution model should not be accepted, and hence the number evolution for ellipticals is a straightforward inference. Our conclusions hold in any one of the three cosmological models, i.e., flat, open, or Lambda-dominated, under consideration.
关键词	cosmology elliptical galaxies galaxy formation galaxy evolution
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000081788100026
出版者	HUAZHONG UNIV SCI TECH PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/14472
专题	中国科学院数学与系统科学研究院
通讯作者	He, P
作者单位	1.Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China 2.Chinese Acad Sci, State Key Lab Sci & Engn Comp, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	He, P,Zhang, YZ. Multiple and strong luminosity evolution in the population of elliptical galaxies[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1999,32(1):155-160.
APA	He, P,&Zhang, YZ.(1999).Multiple and strong luminosity evolution in the population of elliptical galaxies.COMMUNICATIONS IN THEORETICAL PHYSICS,32(1),155-160.
MLA	He, P,et al."Multiple and strong luminosity evolution in the population of elliptical galaxies".COMMUNICATIONS IN THEORETICAL PHYSICS 32.1(1999):155-160.