Infrared spectroscopy of nearby radio active elliptical galaxies

Abstract

In preparation for a study of their circumnuclear gas we have surveyed 60% of a complete sample of elliptical galaxies within 75 Mpc that are radiosources. Some 20% of our nuclear spectra have infrared emission lines, mostly Paschen lines, Brackett gamma and [FeII]. We consider the influence of radio power and black hole mass in relation to the spectra. Access to the spectra is provided as a community resource.

Accepted by ApJ Supplement November issue

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• Young Star Clusters In The Circumnuclear Region Of NGC 2110
• Near Infrared spectroscopic indices for unresolved stellar populations. I. Template galaxy spectra
• High-energy Gamma-rays from Magnetically Arrested Disks in Nearby Radio Galaxies
• IC 630: Piercing the Veil of the Nuclear Gas
• Black Holes in 4 Nearby Radio Galaxies
• Infrared and Optical Emission-line Diagnostics
• Infrared Spectroscopy of Nearby Radio Active Early-Type Galaxies -- II: Spectral Atlas