Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...251..497h&link_type=abstract
Astrophysical Journal, Part 1, vol. 251, Dec. 15, 1981, p. 497-500. Research supported by the Natural Sciences and Engineering
Astronomy and Astrophysics
Astrophysics
41
Coalescing, Galactic Clusters, Galactic Structure, Globular Clusters, Collision Parameters, Elliptical Galaxies, Spiral Galaxies
Scientific paper
Two principal differences between globular cluster systems located in different environments are suggested by the combination of recent, nearby-galaxy globular cluster population observations and current theory concerning galaxy members: (1) elliptical galaxies found in small groups have fewer globular clusters per unit galaxy luminosity than do ellipticals in the Virgo cluster; and (2) major spiral galaxies contain fewer globular clusters per unit spheroidal luminosity than ellipticals, irrespective of environment. Both findings are consistent with the views that galaxy mergers are more frequent for the case of ellipticals outside rich clusters, and that disk galaxy halo stellar populations may be fundamentally different from those in elliptical galaxies.
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