High energy photon flux prediction from neutralino annihilation in the globular cluster Palomar 13

Details High energy photon flux prediction from neutralino annihilation in the globular cluster Palomar 13 High energy photon flux prediction from neutralino annihilation in the globular cluster Palomar 13

2002-09-11

arxiv.org/abs/astro-ph/0209230v1

Astronomy and Astrophysics

Astrophysics

A 2-page poster to be published in ``Astronomy, Cosmology and Fundamental Physics'', the proceedings of the ESO-CERN-ESA Sympo

Scientific paper

10.1007/10857580_49

The distant globular cluster Palomar 13 has been found to have a very high mass-to-light ratio and its profile can be well fitted either by a King model with a tail, or with a NFW model. This cluster may be the first case of the many clumps predicted by CDM simulations that would not be disrupted by the galactic halo potential. We make the hypothesis that Pal 13 is made of neutralinos and run the DarkSuspect code to estimate the high-energy photon flux due to the annihilation of neutralinos through various channels in some benchmark scenarios. These low fluxes may be used as targets to be reached in proposals for future ground-based high altitude Cerenkov telescopes.

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