Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jrasc..74..189d&link_type=abstract
Journal of the Royal Astronomical Society of Canada, vol. 74, Aug. 1980, p. 189-202. Research supported by the Natural Sciences
Astronomy and Astrophysics
Astronomy
2
Galactic Evolution, Galactic Structure, Spiral Galaxies, Abundance, Astronomical Models, Cosmology, Elliptical Galaxies, Galactic Clusters
Scientific paper
The paper presents a theory that disk systems are secondary structures produced by accretion of a metal-enriched intracluster medium by an elliptical system. The theory can account for the metal-rich, high-specific-angular-momentum material in the disk components. It is proposed that the intracluster gas with near-solar metal abundances observed in rich clusters originated in primary systems during the galaxy formation epoch. It was shown that subsonic accretion by elliptical masses greater than 10 to the 10th solar mass can form spirals on reasonable timescales under the conditions of poor clusters and rich-cluster envelopes.
de Robertis Michael M.
Henriksen Richard N.
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