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Issue A&A
Volume 414, Number 2, February I 2004
Page(s) 497 - 501
Section Galactic structure and dynamics
DOI http://dx.doi.org/10.1051/0004-6361:20031658



A&A 414, 497-501 (2004)
DOI: 10.1051/0004-6361:20031658

A multi-particle model of the 3C 48 host

J. Scharwächter1, A. Eckart1, S. Pfalzner1, J. Zuther1, M. Krips1, 2 and C. Straubmeier1

1  I. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, 50937 Köln
2  IRAM, 300 rue de la Piscine, Domaine Universitaire, 38406 Saint Martin d'Hères, France

(Received 15 August 2003 / Accepted 24 October 2003)

Abstract
The first successful multi-particle model for the host of the well-known quasi-stellar object (QSO) 3C 48 is reported. It shows that the morphology and the stellar velocity field of the 3C 48 host can be reproduced by the merger of two disk galaxies. The conditions of the interaction are similar to those used for interpreting the appearance of the "Antennae" ( NGC 4038/39 ) but seen from a different viewing angle. The model supports the controversial hypothesis that 3C 48A is the second nucleus of a merging galaxy, and it suggests a simple solution for the problem of the missing counter tidal tail.


Key words: galaxies: interactions -- methods: simulations -- quasars: individual: 3C 48

Offprint request: J. Scharwächter, scharw@ph1.uni-koeln.de

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© ESO 2004


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