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Central Activity in 60 Micron Peakers

Published online by Cambridge University Press:  12 April 2016

Charlene A. Heisler ,
J.P. Vader  and
Jay A. Frogel
Charlene A. Heisler
Affiliation:
Yale University, Dept. of Astronomy, Box 6666, New Haven, CT, 06511
J.P. Vader
Affiliation:
Yale University, Dept. of Astronomy, Box 6666, New Haven, CT, 06511
Jay A. Frogel
Affiliation:
Ohio State University, Dept. of Astronomy, 174 W. 18th Avenue, Columbus, OH, 43210

Abstract

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We present CCD imaging results of our sample of IRAS galaxies with spectral energy distributions peaking at 60μm (Vader et al 1988). The results support our suggestion that the activity in 60μm peaking galaxies is centrally concentrated, and represents an early stage of dust-embedded nuclear activity. This activity is probably triggered by a recent interaction/merger event as indicated by their peculiar optical morphologies. We propose that 60μm peakers are the precursors of S0’s in the case of amorphous systems, and ellipticals in the case of interacting galaxies.

Type
V. Observations of Nuclear and Near-Nuclear Activity
Information
International Astronomical Union Colloquium , Volume 124: Paired and Interacting Galaxies , 1990 , pp. 393 - 398
Copyright
Copyright © NASA 1990

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