Black Holes in 4 Nearby Radio Galaxies
Jeremy Mould, Tony Readhead, Garret Cotter, David Batt, Mark Durre'
TL;DR
This paper investigates the presence of black holes in four nearby radio galaxies by analyzing nuclear velocity dispersion profiles, providing evidence for black holes in two galaxies and setting upper limits for the others.
Contribution
It offers new measurements of nuclear velocity dispersions and evidence for black holes in specific galaxies, enhancing understanding of black hole prevalence in radio galaxies.
Findings
Black holes detected in NGC 1326 and 5838.
Upper limits set for black hole masses in NGC 2685 and 5273.
Gas outflow observed in NGC 5273.
Abstract
We study the velocity dispersion profiles of the nuclei of NGC 1326, 2685, 5273 and 5838 in the CO first overtone band. There is evidence for a black hole (BH) in NGC 1326 and 5838. Gas is seen flowing out of the nuclear region of NGC 5273. We put upper limits on the nuclear BHs responsible for its activity and that of NGC 2685.
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