2013/07/31 by M. G. Aartsen, R. Abbasi, Y. Abdou +286 · 1 citation
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #Dark galaxy #Dark matter #Dwarf galaxy #Dwarf spheroidal galaxy #Galaxy #Galaxy cluster #Galaxy group #Neutrino #Particle physics #Particle physics theoretical and experimental studies #Physics #astro-ph.HE
paper · pdf · doi:10.1103/physrevd.88.122001
published as Phys. Rev. D88 (2013) 122001 · 10 pages, 9 figures
openalex publication_date 2013/12/06 · arxiv created 2014/02/11 · arxiv updated 2016/03/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 bb, W+W^\ensuremath-, \ensuremathτ+\ensuremathτ^\ensuremath-, \ensuremathμ+\ensuremathμ^\ensuremath-, and \ensuremathν\ensuremathν. 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.