Identification and morphologies of galaxies with old stellar populations at z∼2.5

被引：0
|
作者：
Stockton, Alan [1 ]
McGrath, Elizabeth [1 ]
机构：
[1] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
来源：
COSMIC FRONTIERS | 2007年 / 379卷
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D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We describe a study of morphologies of galaxies with old stellar populations in radio-source fields at z similar to 2.5. A significant fraction of these are dominated by disks of old stars, and none we have found so far has the properties of present-epoch ellipticals. Recent Spitzer IRAC data confirms that at least one of our prime examples is definitely not a reddened star-forming galaxy.
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页码：122 / 125
页数：4
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