Gas mass fractions and the evolution of spiral galaxies
SS McGaugh, WJG De Blok - The Astrophysical Journal, 1997 - iopscience.iop.org
SS McGaugh, WJG De Blok
The Astrophysical Journal, 1997•iopscience.iop.org… ABSTRACT 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. … We generally
imagine that galaxies form out of the gas that emerges from the hot big bang. Regardless of
the details of galaxy formation, the units we observe as galaxies today have converted
some fraction of this gas into stars. The …
with luminosity and surface brightness. It is not correlated with linear size. … We generally
imagine that galaxies form out of the gas that emerges from the hot big bang. Regardless of
the details of galaxy formation, the units we observe as galaxies today have converted
some fraction of this gas into stars. The …
Abstract
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.
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