Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.254..509f&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 254, Feb. 1, 1992, p. 509-524.
Astronomy and Astrophysics
Astronomy
63
Active Galactic Nuclei, Galactic Nuclei, Infrared Astronomy, Infrared Imagery, Near Infrared Radiation, Starburst Galaxies, Continuous Radiation, Emission Spectra, Extragalactic Radio Sources, Quasars, Seyfert Galaxies, X Rays
Scientific paper
Near IR observations of the nuclei of 22 LINER and starburst galaxies are presented. A method based on a generalized Gaussian fit to the galaxy profile, which estimates the flux due to a point source within the galaxy, is presented. This method provides an alternative to traditional procedures for estimating the nuclear component, irrespective of whether this is due to a compact cluster of stars or an obscured Seyfert nucleus. The nuclear NIR emission correlates with the soft X-rays and 6-cm radio emission. This is consistent with both star formation or a mini black hole as the source of the nuclear activity. Most of these galaxies have extended NIR emission, which strongly supports a starlight and/or thermal dust origin for the emission. It is predicted that in many cases the X-ray emission will also be extended.
Boisson Catherine
DePoy Darren L.
Forbes Duncan A.
Smith Marcia S.
Ward Martin J.
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