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Infrared Images of Merging Galaxies

Published online by Cambridge University Press:  12 April 2016

G. S. Wright ,
P. A. James ,
R. D. Joseph ,
I. S. McLean  and
R. Doyon
G. S. Wright
Affiliation:
Joint Astronomy Centre, 665 Komohana Street, Hilo, HI96720
P. A. James
Affiliation:
Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, HI96822
R. D. Joseph
Affiliation:
Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, HI96822
I. S. McLean
Affiliation:
Dept. of Astronomy and Physics, UCLA, 405 Hilgard Ave., Los Angeles, CA90024
R. Doyon
Affiliation:
Blackett Laboratory, Imperial College, London, SW7 2BZ

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Infrared imaging of interacting galaxies is especially interesting because their optical appearance is often so chaotic due to extinction by dust and emission from star formation regions, that it is impossible to locate the nuclei or determine the true stellar distribution. However, at near-infrared wavelengths extinction is considerably reduced, and most of the flux from galaxies originates from red giant stars that comprise the dominant stellar component by mass. Thus near infrared images offer the opportunity to study directly components of galactic structure which are otherwise inaccessible. Such images may ultimately provide the framework in which to understand the activity taking place in many of the mergers with high IRAS luminosities.

Type
IV. Observations of Global Activity due to Interaction
Information
International Astronomical Union Colloquium , Volume 124: Paired and Interacting Galaxies , 1990 , pp. 321 - 326
Copyright
Copyright © NASA 1990

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