Census of the star-forming galaxy population at z < 1.5

被引：0
作者：
de Mello, D. F. [1 ]
机构：
[1] NASA, Goddard Space Flight Ctr, CUA, Observat Cosmol Lab, Greenbelt, MD 20771 USA
来源：
XI IAU REGIONAL LATIN AMERICAN MEETING OF ASTRONOMY | 2006年 / 26卷
关键词：
galaxies : evolution; galaxies : formation; galaxies : starburst;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A key question in galaxy evolution is the physical nature of the intermediate redshift galaxies and their present-day counterparts. It is known that the star formation rate density increases rapidly from z = 0 to z = 1 - 2. However, the type of galaxies that contribute to the rise of the star formation density is still debatable. In principle, a steep luminosity function where most of the star-formation is in newly-formed dwarf galaxies or a population of massive galaxies undergoing modest but continuous star formation can produce similar star-formation rate density at a given redshift. Therefore, a census of the star-forming galaxy population as a function of time is needed in order to help us better understand how galaxies acquired their present morphology.
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页码：115 / 116
页数：2
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