Testing the AGN-starburst connection in Seyfert galaxies

Valentin D. Ivanov, George H. Rieke, Christopher E. Groppi, Almudena Alonso-Herrero, Marcia J. Rieke, C. W. Engelbracht

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

We use the CO band at 2.3 μm 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 nonstellar component (most likely, warm dust surrounding the active nucleus). We used JHKL aperture photometry to estimate the nonstellar contribution at 2.3 μm. We successfully corrected the CO band for the dilution for 16 galaxies which were not dominated by the nonstellar 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.

Original languageEnglish (US)
Pages (from-to)190-204
Number of pages15
JournalAstrophysical Journal
Volume545
Issue number1 PART 1
DOIs
StatePublished - Dec 10 2000

Keywords

  • Galaxies : Seyfert
  • Galaxies : nuclei
  • Galaxies: starburst
  • Infrared: galaxies

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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