Multiple and strong luminosity evolution in the population of elliptical galaxies | |
He, P; Zhang, YZ | |
刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS |
1999-07-30 | |
卷号 | 32期号:1页码:155-160 |
关键词 | cosmology elliptical galaxies galaxy formation galaxy evolution |
ISSN号 | 0253-6102 |
英文摘要 | 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. |
WOS研究方向 | Physics |
语种 | 英语 |
出版者 | HUAZHONG UNIV SCI TECH PRESS |
WOS记录号 | WOS:000081788100026 |
内容类型 | 期刊论文 |
源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/14471] |
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. |
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