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Title:
The evolution of disk galaxies and the origin of S0 galaxies
Authors:
Larson, R. B.; Tinsley, B. M.; Caldwell, C. N.
Affiliation:
AA(Yale University Observatory, New Haven, Conn.), AB(Yale University Observatory, New Haven, Conn.), AC(Yale University Observatory, New Haven, Conn.)
Publication:
Astrophysical Journal, Part 1, vol. 237, May 1, 1980, p. 692-707. Research supported by the Alfred P. Sloan Foundation (ApJ Homepage)
Publication Date:
05/1980
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Disk Galaxies, Galactic Evolution, Spiral Galaxies, Digital Simulation, Galactic Structure, Gas Evolution, Stellar Evolution, Stellar Magnitude
DOI:
10.1086/157917
Bibliographic Code:
1980ApJ...237..692L

Abstract

The relation between spiral and S0 galaxies is considered in the light of recent data on the colors and morphology of disk systems and on the content of clusters at different redshifts. It is suggested that S0's may be disk systems that lost their gas-rich envelopes at an early stage and consumed their remaining gas by star formation. The fact that S0's have smaller disk-to-bulge ratios than spirals is consistent with this picture, as are the colors of S0's if most of their star formation stopped at least a few gigayears ago.

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