Searches for a dark matter annihilation signal from the milky way halo with the H.E.S.S. array of imaging atmospheric cherenkov telescopes

Spengler G, Birsin E, van Eldik C, Nekrassov D, Schwanke U (2011)

Publication Status: Published

Publication Type: Conference contribution, Conference Contribution

Publication year: 2011

Publisher: Institute of High Energy Physics

Book Volume: 5

Pages Range: 159-162

Event location: Beijing CN

DOI: 10.7529/ICRC2011/V05/0862

Abstract

The central region of the DM halo of the Milky Way is a promising target for a search for a particle dark matter (DM) self annihilation signal. Recent N-body simulations agree in the description of the radial DM density profile of a DM halo at projected distances from the halo center bigger than 45 pc within a factor of two. A search for a DM annihilation photon flux with the High Energy Stereoscopic System (H.E.S.S.) in the energy range between 300 GeV and 100 TeV originating from distances to the halo center bigger than 45 pc (0.3?) is presented. Assuming that the radial dependence of the DM density of the Milky Way can be described with the results of recent N-body simulations, upper limits for the velocity weighted self annihilation cross section of weakly interacting massive particles (WIMPs) in the order of 10 cm3s at WIMP masses of 1 TeV can be calculated. Prospects on an improvement of the sensitivity are discussed.

Authors with CRIS profile

Christopher van Eldik Professur für Experimentalphysik

Involved external institutions

Humboldt-Universität zu Berlin DE Germany (DE) Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics DE Germany (DE)

How to cite

APA:

Spengler, G., Birsin, E., van Eldik, C., Nekrassov, D., & Schwanke, U. (2011). Searches for a dark matter annihilation signal from the milky way halo with the H.E.S.S. array of imaging atmospheric cherenkov telescopes. In Proceedings of the 32nd International Cosmic Ray Conference, ICRC 2011 (pp. 159-162). Beijing, CN: Institute of High Energy Physics.

MLA:

Spengler, G., et al. "Searches for a dark matter annihilation signal from the milky way halo with the H.E.S.S. array of imaging atmospheric cherenkov telescopes." Proceedings of the 32nd International Cosmic Ray Conference, ICRC 2011, Beijing Institute of High Energy Physics, 2011. 159-162.

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