Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Constraints on the Global Mass-to-Light Ratios and Extent of Dark Matter
  Halos in Globular Clusters and Dwarf Spheroidals   The detection of stars in the process of being tidally removed from globular
clusters and dwarf spheroidals in the Galaxy's halo provides a strong
constraint on their mass to light ratios and on the extent of their possible
dark matter halos. If a significant dark matter component existed either within
or beyond the observed stellar distribution, then stars would not be removed.
We use numerical simulations to study mass loss from two component star
clusters orbiting within a deeper potential. We find a global upper limit on
the mass to light ratios of globular clusters, M/L \lsim 2.5, and rule out the
possibility that they have extended halos of low luminosity material.
Similarly, the tidal tails of dwarf spheroidals indicates that their dark
matter halos must be truncated at \sim 400 pc therefore they have total mass to
light ratios \lsim 100.

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The categories of this paper are: acc-phys
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The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: econ
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The categories of this paper are: chem-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: math
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The categories of this paper are: hep-lat
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The categories of this paper are: supr-con
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The categories of this paper are: gr-qc
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-fin
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The categories of this paper are: nlin
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The categories of this paper are: hep-th
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The categories of this paper are: physics
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The categories of this paper are: stat