Astronomy and Astrophysics – Astronomy
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987nascp2466..707w&link_type=abstract
Star formation in galaxies, Proceedings of a conference at the California Institute of Technology, Pasadena, California, June 16
Astronomy and Astrophysics
Astronomy
Galactic Nuclei, Infrared Spectra, Luminous Intensity, Point Sources, Radio Emission, Star Formation, Accretion Disks, Cosmic Dust, Infrared Astronomy, Interacting Galaxies, Spectral Energy Distribution, Spiral Galaxies, Starburst Galaxies
Scientific paper
Extended emission at 10 and 20 microns can be used to distinguish starbursts from monsters as the underlying energy source driving the luminous infrared emission in the central regions of galaxies. The spatial extent of the mid infrared emission in the interacting galaxy NCG 2798 and the merger NGC 6240 were investigated. The 10 and 20 micron profiles of the IR source in NGC 2798 are significantly wider than beam profiles measured on a standard star, supporting a starburst interpretation of its IR luminosity. For NGC 6240 there is marginal evidence for an extended 10 micron source, suggesting that a significant fraction of its IR luminosity could be produced by a burst of star formation.
James Phil A.
Joseph Robert D.
Robertson Norna A.
Wright Gillian S.
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