EDP Sciences
Free access
Volume 439, Number 1, August III 2005
Page(s) 75 - 84
Section Extragalactic astronomy
DOI http://dx.doi.org/10.1051/0004-6361:20052643

A&A 439, 75-84 (2005)
DOI: 10.1051/0004-6361:20052643

Molecular gas and continuum emission in 3C 48: evidence for two merger nuclei?

M. Krips1, A. Eckart1, R. Neri2, J. Zuther1, D. Downes2 and J. Scharwächter1

1  I. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
    e-mail: krips@ph1.uni-koeln.de
2  Institut de Radio Astronomie Millimétrique, 300 rue de la Piscine, 38406 Saint Martin d'Hères, France

(Received 5 January 2005 / Accepted 3 May 2005)


second, weaker CO source at the QSO itself. At 1.2 mm, the continuum emission is elongated in the direction of the radio jet and towards 3C 48A. We model the 1.2 mm continuum with three different sources in 3C 48 - the 3C 48 QSO, the 3C 48 jet, and the second nucleus 3C 48A. We suggest that the unusually bright and extended nature of the jet may be due to its interaction with the second merger nucleus 3C 48A.

Key words: galaxies: active -- galaxies: kinematics and dynamics -- galaxies: interaction -- quasars: individual: 3C 48

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