Journal article
IceCube Search for Dark Matter Annihilation in nearby Galaxies and Galaxy Clusters
- Abstract:
- We present the results of a first search for self-annihilating dark matter in nearby galaxies and galaxy clusters using a sample of high-energy neutrinos acquired in 339.8 days of live time during 2009/10 with the IceCube neutrino observatory in its 59-string configuration. The targets of interest include the Virgo and Coma galaxy clusters, the Andromeda galaxy, and several dwarf galaxies. We obtain upper limits on the cross section as a function of the weakly interacting massive particle mass between 300 GeV and 100 TeV for the annihilation into b bbar, W+W-, \tau+\tau-, \mu+\mu-, and \nu \nu bar. A limit derived for the Virgo cluster, when assuming a large effect from subhalos, challenges the weak interacting massive particle interpretation of a recently observed GeV positron excess in cosmic rays.
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Authors
- Journal:
- Phys. Rev. D More from this journal
- Volume:
- 88
- Pages:
- 122001
- Publication date:
- 2013-07-12
- DOI:
- Keywords:
- Pubs id:
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pubs:411851
- UUID:
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uuid:500c08fd-b98c-4402-97dc-2237340cc78f
- Local pid:
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pubs:411851
- Source identifiers:
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411851
- Deposit date:
-
2013-11-17
Terms of use
- Copyright date:
- 2013
- Notes:
- 10 pages, 9 figures
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