Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...282..427t&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 282, July 15, 1984, p. 427-435. Research supported by the U.S. National Res
Astronomy and Astrophysics
Astronomy
165
Galactic Nuclei, Infrared Astronomy, Luminous Intensity, Seyfert Galaxies, Stellar Evolution, Astronomical Maps, Brightness Distribution, Far Infrared Radiation, Spectral Energy Distribution
Scientific paper
A 10 micron map of the Seyfert galaxy NGC 1068 and airborne measurements of its angular extent in the far-infrared are presented. It is shown that the infrared emission originates primarily from two physically distinct regions; approximately half of the total infrared luminosity of 3 x 10 to the 11th solar luminosities is associated with the Seyfert nucleus and half with a 3 kpc (35 arc sec) diameter disk surrounding it. It is argued that the disk component of infrared emission originates from an extended but heavily obscured burst of star formation which resembles those seen in some non-Seyfert galaxies. This high-luminosity disk is distinguished more by its large size than by its high surface brightness. On the basis of current evidence it cannot be concluded that the high disk luminosity in NGC 1068 is causally related to its Seyfert activity.
Becklin Eric E.
Harper Doyal A.
Telesco Charles M.
Wynn-Williams C. G.
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