Testing the AGN-Starburst Connection in Seyfert Galaxies

Details Testing the AGN-Starburst Connection in Seyfert Galaxies Testing the AGN-Starburst Connection in Seyfert Galaxies

2000-07-13

arxiv.org/abs/astro-ph/0007177v2

Astronomy and Astrophysics

Astrophysics

34 pages (including 4 figures), accepted for publication in ApJ Final version. Minor changes in figure captions, auffiliations

Scientific paper

10.1086/317792

We use the CO band at 2.3 micron to constrain the populations of young stars in the central regions of Seyfert galaxies. We report new CO band spectroscopy of 46 Seyfert galaxies. In most cases, the observed CO indices appear diluted by the presence of a non-stellar component (most likely, warm dust surrounding the active nucleus). We used JHKL aperture photometry to estimate the non-stellar contribution at 2.3 micron. We successfully corrected the CO band for the dilution for 16 galaxies which were not dominated by the non-stellar component. Comparing with CO indices measured in elliptical and purely starbursting galaxies, we find no evidence for strong starbursts in the majority of these galaxies.

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