Indirect Search for Dark Matter in M31 with the CELESTE Experiment

Abstract

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. M31 (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 gamma-ray detection. The ground based atmospheric Cherenkov telescope CELESTE observed M31 from 2001 to 2003, in the mostly unexplored energy range 50-500 GeV. These observations provide an upper limit on the flux above 50 GeV around $10^{-10}{\mathrm{cm}}^{-2}{\mathrm{s}}^{-1}$ in the frame of supersymmetric dark matter, and more generally on any gamma emission from M31.

Accepted for publication in Astronomy & Astrophysics

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Cited by in corpus (13)

• Gamma Ray Signals from Dark Matter: Concepts, Status and Prospects
• The long bar as seen by the VVV survey: I. Colour-magnitude diagrams
• Stellar mass map and dark matter distribution in M31
• Empirical Models for Dark Matter Halos. II. Inner profile slopes, dynamical profiles, and rho/sigma^3
• Conservative Constraints on Dark Matter Annihilation into Gamma Rays
• Extragalactic gamma-ray background radiation from dark matter annihilation
• WIMP searches with gamma rays in the Fermi era: challenges, methods and results
• A Search for Dark Matter Annihilation with the Whipple 10m Telescope
• Constraints on dark matter annihilation by radio observations of M31
• Dark Matter Indirect Signatures
• Gamma-ray Constraints on Dark Matter Annihilation into Charged Particles
• Mrk 421, Mrk 501, and 1ES 1426+428 at 100 GeV with the CELESTE Cherenkov Telescope
• Testing two alternatives theories to dark matter with the Milky Way dynamics