Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stellar Mass-to-Light Ratios and the Tully-Fisher relation   We use spiral galaxy evolution models to argue that there are substantial
variations in stellar mass-to-light ratio (M/L) within and among galaxies. Our
models show a strong correlation between stellar M/L and galaxy color. We
compare the colors and maximum-disk M/L values of a sample of galaxies to the
model color-M/L relation, finding that a Salpeter IMF is too massive but that
an IMF with fewer low mass stars fits the observations well. Applying our
color-M/L relation to the Tully-Fisher (TF) relation, we find a stellar mass
TF-relation that is independent of originating passband. Adding the HI gas
mass, we find that the maximum slope of the baryonic TF-relation is 3.5.

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The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
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The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
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The categories of this paper are: stat
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
3
The categories of this paper are: physics
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The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
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The categories of this paper are: eess