Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...285..404m&link_type=abstract
Astronomy and Astrophysics 285, 404-414 (1994)
Astronomy and Astrophysics
Astrophysics
52
Galaxies: Clustering, Galaxies: Interactions, Galaxies: Kinematics And Dynamics, Galaxies: Photometry
Scientific paper
New UBV aperture photometry for 177 galaxies in Hickson compact groups is presented. The analysis of the color-color diagram indicates that, contrary to what one naively would expect, only a slight enhancement in their star formation rates is present. The results are confirmed by the analysis of the IRAS data, taking in particular into account the 25μm detections. Star formation in compact groups is not found to be higher than in isolated pairs of galaxies. Earlier results on the absence of clear candidates for merger products of late type galaxies are confirmed and strengthened. It is pointed out that the relation between velocity dispersion and morphological mixing found for Hickson groups could be one of the clues to understand the evolution of galaxies in them.
Costa Víctor
Del Olmo Ascension
Marquez Isabel
Masegosa Josefa
Moles Mariano
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