GLOBULAR-CLUSTERS IN MERGERS

Citation
U. Fritzevanalvensleben et A. Burkert, GLOBULAR-CLUSTERS IN MERGERS, Astronomy and astrophysics, 300(1), 1995, pp. 58-64
Citations number
37
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
00046361
Volume
300
Issue
1
Year of publication
1995
Pages
58 - 64
Database
ISI
SICI code
0004-6361(1995)300:1<58:GIM>2.0.ZU;2-D
Abstract
From spectrophotometric and chemical evolutionary modelling of interac ting and merging galaxies we predict abundances of burst stars and of globular clusters (GCs) that may be formed in strong bursts. Observati ons of young GCs in merger remnants confirm the predicted metallicitie s. We investigate their formation as a result of a strong star burst w ith a high star formation efficiency over a large volume of the merger remnant. The evolution of GCs of various metallicities in terms of br oad band colours and stellar metal indices are modeled. Comparing our results to the V-I, Mgb and Fe5270 observations of GCs in NGC 7252 lar gely removes the age - metallicity degeneracy and allows for accurate age dating as well as for estimating the effects of self - enrichment.