view Abstract Citations (49) References (74) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The evolution of disk galaxies and the S0 problem, revisited. Bothun, G. D. Abstract Relevant properties of galactic clusters in relation to their ability to alter the course of galactic evolution are reviewed, and the extensive data base of Bothun (1982) is used to reexamine the role of the environment in causing the evolution of disk galaxies. Proposed sweeping mechanisms are summarized, including direct collisions, tidal encounters, ram pressure, thermal evaporation, and internal gas removal. Preliminary observational support for stripping, including that from population ratios, hydrogen-deficient spirals in clusters, and optical properties of cluster spirals, is compared with evidence against stripping. Bothun's data are portrayed in the color-gas content plane, and theoretical evolutionary tracks are constructed in that plane to serve as an adjunct to data interpretation. It is concluded that initial conditions of formation and variations in star formation histories have been more important than environmental influences in determining the present-day character of spiral galaxies in clusters. Publication: The Astrophysical Journal Supplement Series Pub Date: September 1982 DOI: 10.1086/190819 Bibcode: 1982ApJS...50...39B Keywords: Disk Galaxies; Galactic Evolution; Spiral Galaxies; Data Bases; Galactic Clusters; Galactic Structure; Hydrogen; Milky Way Galaxy; Star Distribution; Astrophysics full text sources ADS | data products SIMBAD (9)