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

Bibcode
2005A&A...429L..21S
DOI
10.1051/0004-6361:200400107
Sánchez, S. F.; Becker, T.; Garcia-Lorenzo, B.; Benn, C. R.; Christensen, L.; Kelz, A.; Jahnke, K.; Roth, M. M.
Bibliographical reference

Astronomy and Astrophysics, v.429, p.L21-L24 (2005)

Advertised on:
1
2005
Journal
Astronomy and Astrophysics
Number of authors
8
IAC number of authors
1
Citations
15
Refereed citations
15
Description
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 citep{veil87}. 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%). An increase of the nuclear activity with the far infrared temperature may account for the difference.
Type
Refereed
Galaxies

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