Nuclear Stellar Populations in the Infrared Space Observatory Atlas of Bright Spiral Galaxies

  title={Nuclear Stellar Populations in the Infrared Space Observatory Atlas of Bright Spiral Galaxies},
  author={George J Bendo and Robert D. Joseph},
  journal={The Astronomical Journal},
To understand the nuclear stellar populations and star formation histories of the nuclei of spiral galaxies, we have obtained K-band nuclear spectra for 41 galaxies and H-band spectra for 20 galaxies in the Infrared Space Observatory’s Atlas of Bright Spiral Galaxies. In the vast majority of the subsample (80%), the near-infrared spectra suggest that evolved red stars completely dominate the nuclear stellar populations and that hot young stars are virtually nonexistent. The signatures of recent… 
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