Sep 8 – 13, 2013
Asilomar, California
US/Pacific timezone

A search for dark matter subhalo candidates in the gamma-ray band

Sep 11, 2013, 7:30 PM
2h 30m
Asilomar, California

Asilomar, California

Asilomar Conference Grounds, 800 Asilomar Avenue, Pacific Grove, CA 93950-3704
Poster Dark Matter Poster Session


Dr Daniel Nieto (Columbia University)


We present a search for potential dark matter subhalos in our Galaxy exploiting the high (100 MeV - 100 GeV) and very high energy (>100 GeV) gamma-ray band. We assume the dark matter to be formed of annihilating weakly interacting massive particles of mass over 100 GeV. In such a scenario, most of the photons from the dark matter annihilation spectrum are expected in the high energy gamma-ray band, whereas a distinctive spectral cut-off located at the dark matter particle mass is expected in the very high energy gamma-ray band. We present a thorough selection of high energy gamma-ray sources as dark matter subhalo candidates out of the Fermi-Large Area Telescope Second Source Catalog. We compute the detection prospects of such sources in the very high energy gamma-ray band by the current and future generation of imaging atmospheric Cherenkov telescopes after assuming their gamma-ray emission to be originated by dark matter annihilation. A list of the best dark matter subhalo candidates to be observed by such telescopes is proposed.

Primary author

Dr Daniel Nieto (Columbia University)


Mrs Irene Lozano (Complutense University) Dr Juan Abel Barrio (Complutense University) Dr Konstancja Satalecka (Complutense University)

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