Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Luminosity Function of M3   We present a high precision, large sample luminosity function (LF) for the
Galactic globular cluster M3. With a combination of ground based and Hubble
Space Telescope data we cover the entire radial extent of the cluster. The
observed LF is well fit by canonical standard stellar models from the red giant
branch (RGB) tip to below the main sequence turnoff point. Specifically,
neither the RGB LF-bump nor subgiant branch LF indicate any breakdown in the
standard models. On the main sequence we find evidence for a flat initial mass
function and for mass segregation due to the dynamical evolution of the
cluster.

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The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
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The categories of this paper are: cmp-lg
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom