Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dark Matter and Gamma-Rays From Draco: MAGIC, GLAST and CACTUS   The dwarf spheroidal galaxy Draco has long been considered likely to be one
of the brightest point sources of gamma-rays generated through dark matter
annihilations. Recent studies of this object have found that it remains largely
intact from tidal striping, and may be more massive than previously thought. In
this article, we revisit Draco as a source of dark matter annihilation
radiation, with these new observational constraints in mind. We discuss the
prospects for the experiments MAGIC and GLAST to detect dark matter in Draco,
as well as constraints from the observations of EGRET. We also discuss the
possibility that the CACTUS experiment has already detected gamma-rays from
Draco. We find that it is difficult to generate the flux reported by CACTUS
without resorting to non-thermally produced WIMPs and/or a density spike in
Draco's dark matter distribution due to the presence of an intermediate mass
black hole. We also find that for most annihilation modes, a positive detection
of Draco by CACTUS would be inconsistent with the lack of events seen by EGRET.

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The categories of this paper are: physics
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The categories of this paper are: q-fin
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The categories of this paper are: ao-sci
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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
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The categories of this paper are: nucl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-ex
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The categories of this paper are: eess
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The categories of this paper are: mtrl-th
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The categories of this paper are: math
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The categories of this paper are: funct-an
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The categories of this paper are: econ
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The categories of this paper are: math-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga