The Ages of elliptical galaxies in a merger model
The Ages of elliptical galaxies in a merger model
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DOI：
10.1007/978-94-009-0229-9_40
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发表时间：
1995-02
影响因子：
4.8
通讯作者：
G. Kauffmann
中科院分区：
文献类型：
--
作者：
G. Kauffmann
长期以来，关于我们今天看到的椭圆星系的形成历史，一直有两种相互竞争的观点。其一，现今星系凸起和椭圆中的大多数恒星都是在高红移时恒星形成的一个相对较短的早期阶段产生的。第二种观点认为，椭圆星系是相对较晚出现的星系，是由于周围的暗物质晕在引力作用下聚集在一起的盘状星系合并的结果。
There have long been two competing views on the formation history of the ellipticals galaxies we see today. One is that most of the stars in present-day galactic bulges and ellipticals were produced during a relatively short, early phase of intense star formation at high redshift. The second view is that elliptical galaxies are relative latecomers, having been produced as the result of the merging of disk galaxies drawn together by gravity as their surrounding dark matter halos coalesced.