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 bb̄, W+W-, τ+τ -, μ+μ-, and νν̄. A limit derived for the Virgo cluster, when assuming a large effect from subhalos, challenges the weakly interacting massive particle interpretation of a recently observed GeV positron excess in cosmic rays.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 537.3KB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevD.88.122001
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review D More from this journal
- Volume:
- 88
- Issue:
- 12
- Publication date:
- 2013-12-15
- DOI:
- EISSN:
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1550-2368
- ISSN:
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1550-7998
- Keywords:
- Pubs id:
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pubs:446032
- UUID:
-
uuid:ada35d82-4dea-4569-b6c4-dc2ee3fbb005
- Local pid:
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pubs:446032
- Source identifiers:
-
446032
- Deposit date:
-
2014-02-08
Terms of use
- Copyright holder:
- American Physical Society
- Copyright date:
- 2013
- Notes:
- This is the published version of a journal article published by Physical Review D in on 2013-12-15, available online: http://dx.doi.org/10.1103/PhysRevD.88.122001
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