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Gas Mass Fractions and the Evolution of Spiral Galaxies

ASTROPHYSICAL JOURNAL, no. 2 (1997): 689-702

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We show that the gas mass fraction of spiral galaxies is strongly correlated with luminosity and surface brightness. It is not correlated with linear size. Gas fraction varies with luminosity and surface brightness at the same rate, indicating evolution at fixed size. Dim galaxies are clearly less evolved than bright ones, having consumed...更多

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