The merging/AGN connection II. Ionization of the circumnuclear regions

S. F. Sanchez; T. Becker; B. Garcia-Lorenzo; C. R. Benn; L. Christensen; A. Kelz; K. Jahnke; M. M. Roth

doi:10.1051/0004-6361:200400107

The merging/AGN connection II. Ionization of the circumnuclear regions

Astrophysics 2009-11-10 v1

Authors: S. F. Sanchez , T. Becker , B. Garcia-Lorenzo , C. R. Benn , L. Christensen , A. Kelz , K. Jahnke , M. M. Roth

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Abstract

We report the first results of a study of a sample of 20 galaxy mergers/interacting systems, using the VIMOS and PMAS integral field spectrographs. For each object, we extracted the integrated spectrum of the central regions and analyzed the ionization state using classical diagnostic diagrams (Veilleux & Osterbrock 1987). There is evidence of AGN ionization in 4 of the objects, i.e. 20% of the sample, a considerably higher fraction than found in previous studies ~4%

Keywords

galaxy mergers AGN ionization integral field spectroscopy diagnostic diagrams VIMOS

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@article{arxiv.astro-ph/0411528,
  title  = {The merging/AGN connection II. Ionization of the circumnuclear regions},
  author = {S. F. Sanchez and T. Becker and B. Garcia-Lorenzo and C. R. Benn and L. Christensen and A. Kelz and K. Jahnke and M. M. Roth},
  journal= {arXiv preprint arXiv:astro-ph/0411528},
  year   = {2009}
}

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4 pages, 2 figures, accepted for publishing in A&A Letters

The merging/AGN connection II. Ionization of the circumnuclear regions

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