ABSORPTION-LINE SPECTRA OF ELLIPTIC GALAXIES AND THEIR RELATION TO ELLIPTIC FORMATION

被引：0
|
作者：
FABER, SM
WORTHEY, G
GONZALEZ, JJ
机构：
来源：
IAU SYMPOSIA | 1992年 / 149期
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Recent spectral data strongly suggest that elliptical galaxies represent at least a two- and probably a three-parameter sequence: light-element abundance, iron-peak abundance, and probably age. These data are discussed in the context of new ideas about elliptical formation, including hierarchical clustering, merger-caused starbursts, and a variable IMF. Non-solar abundance ratios set important constraints on elliptical formation.
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页码：255 / 265
页数：11
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