Speaker
Dr
Daniel Nieto
(Columbia University)
Description
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)
Co-authors
Mrs
Irene Lozano
(Complutense University)
Dr
Juan Abel Barrio
(Complutense University)
Dr
Konstancja Satalecka
(Complutense University)
