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Journal Articles Astronomy and Astrophysics - A&A Year : 2006

Indirect search for dark matter in M 31 with the CELESTE experiment

E. Durand
B. Lott

Abstract

Context: .If dark matter is made of neutralinos, annihilation of such Majorana particles should produce high energy cosmic rays, especially in galaxy halo high density regions like galaxy centres. Aims: .M 31 (Andromeda) is our nearest neighbour spiral galaxy, and both its high mass and its low distance make it a source of interest for the indirect search for dark matter through γ-ray detection. Methods: .The ground based atmospheric Cherenkov telescope CELESTE observed M 31 from 2001 to 2003, in the mostly unexplored energy range 50-500 GeV. Results: .These observations provide an upper limit on the flux above 50 GeV around 10-10 cm-2 s-1 in the frame of supersymmetric dark matter, and more generally on any gamma emission from M 31.

Dates and versions

hal-00628187 , version 1 (30-09-2011)

Identifiers

Cite

J. Lavalle, H. Manseri, A. Jacholkowska, E. Brion, R. Britto, et al.. Indirect search for dark matter in M 31 with the CELESTE experiment. Astronomy and Astrophysics - A&A, 2006, 450, pp.1-8. ⟨10.1051/0004-6361:20054340⟩. ⟨hal-00628187⟩
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