期刊
ASTRONOMISCHE NACHRICHTEN
卷 329, 期 9-10, 页码 1042-1045出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asna.200811060
关键词
galaxies: evolution; galaxies: interactions; galaxies: individual (NGC 4038, NGC 4039); methods: numerical
资金
- DFG [SPP 1177]
- Cluster of Excellence
In the framework of hierarchical structure formation ellipticals can form from merging of smaller disk galaxies. The nearby interacting 'Antennae' galaxy pair (NGC 4038/39) is one of the best-studied local systems of merging spirals, thus presenting us with an ideal laboratory for the study of galaxy evolution models. The Antennae are believed to be in a state prior to their final encounter with rapid subsequent merging, which puts them in the first position of the Toomre (1977) merger sequence. Here we present first numerical high-resolution, self-consistent, smoothed particle hydrodynamics (SPH) simulations of the Antennae system, including star formation and stellar feedback, and compare our results to VLA H I observations by Hibbard et al. (2001). We are able to obtain a close, but not yet perfect match to the observed morphology and kinematics of the system. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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