Extended 20 micron emission from the center of NGC 1068

Details Extended 20 micron emission from the center of NGC 1068 Extended 20 micron emission from the center of NGC 1068

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...241l..69t&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 241, Oct. 15, 1980, p. L69-L72.

Astronomy and Astrophysics

Astrophysics

27

Astronomical Photometry, Galactic Nuclei, Galactic Radiation, Infrared Spectra, Seyfert Galaxies, Cosmic Dust, Thermal Emission

Scientific paper

Multiaperture photometry of the Seyfert galaxy NGC 1068 is reported which demonstrates that significant 20 micron emission originates at positions located more than 3 arcsec, or 260 pc, from the nucleus. These observations strongly support arguments that most of the infrared flux is thermal emission from dust. It is argued that the dust giving rise to this extended emission cannot be heated solely by a compact nuclear object. It is suggested that there is a powerful energy-generation mechanism, possibly an enormous burst of star formation, operating on a scale much larger than that identified with the visible nucleus.

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