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Star Formation and Galaxy Interactions

Published online by Cambridge University Press:  03 August 2017

William C. Keel
William C. Keel*
Affiliation:
Department of Physics and Astronomy Box 870324, University of Alabama Tuscaloosa, AL 35487, U.S.A.

Abstract

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Surveys at a variety of wavelengths indicate that galaxy interactions are statistically linked to enhanced rates of star formation. The distributions of star-formation rate (SFR) show typical increases of order 30%, and only a few systems undergoing the order-of-magnitude enhancements typical of strong starbursts (particularly in mergers). Potential advantages and problems of various measures of SFR are discussed, along with issues of sample selection and comparison. Finally, various proposed mechanisms for enhancing the SFR during interactions are listed, with relevant observational tests. Current data suggest that several physical processes may contribute to star formation during interactions.

Type
VIII- Bars, Rings and Starbursts
Information
Symposium - International Astronomical Union , Volume 146: Dynamics of Galaxies and their Molecular Cloud Distributions , 1991 , pp. 243 - 250
Copyright
Copyright © Kluwer 1991 

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