期刊
ASTRONOMISCHE NACHRICHTEN
卷 329, 期 9-10, 页码 1025-1028出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asna.200811043
关键词
galaxies: elliptical and lenticular, cD; galaxies: evolution; galaxies: interactions; galaxies: star clusters
Numerical simulations of galaxy mergers are a powerful tool to study these fundamental events in the hierarchical built-up of galaxies. Recent progress have been made owing to improved modeling, increased resolution and large statistical samples. We present here the highest-resolution models of mergers performed so far. The formation of a variety of substructures ranging from kinematically decoupled cores to globular-like clusters is directly resolved. In a resolution study, we show that the large-scale structure of elliptical-like merger remnants can be affected by the resolution, and a too modest resolution may affect the numerical predictions on the properties of major merger remnants: understanding precisely which kind of event or succession of events has formed the various types of elliptical galaxies remains an open challenge. (C) 2008 WILY-VCH Verlag GmbH & Co. KGBA. Weinheim
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