Near Infrared observations of Soft X-ray selected AGN

Abstract

We report the results of near infrared observations of 19 soft X-ray selected AGN. The goal of the observations was to search for strong, narrow Paschen-alpha or Brackett-gamma emission lines, as a sign of nuclear starbursts. We found Pa-alpha emission in the spectra of 11 sources and Br-gamma in at least five. Strong NIR emission has been found in two sources, CBS 126 and Mkn 766, both objects with strong [OIII]5007 emission, weak FeII emission and wavelength dependent degree of polarization in the optical. Classical Narrow Line Seyfert 1 galaxies do not show exceptionally strong NIR emission lines. We present the results of our study and discuss how our findings fit into an evolutionary scheme of AGN.

6 pages (including 20 Figures), accepted for A&A also available at http://www.xray.mpe.mpg.de/~dgrupe/research/refereed.html

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Cited by in corpus (3)

• A 0.8-2.4 microns spectral atlas of Active Galactic Nuclei
• The continuum and narrow line region of the NLS1 galaxy Mrk 766
• Strong UV and X-ray variability of the Narrow Line Seyfert 1 Galaxy WPVS 007 -- on the nature of the X-ray low state