Search for annihilating Dark Matter towards dwarf galaxies with the Cherenkov Telescope Array

Abstract

Abstract. The standard model of cosmology indicates that approximately 27% of the energy density of the Universe is in the form of dark matter. The nature of dark matter is an open question in modern physics. Indirect dark matter searches with imaging atmospheric Cherenkov telescopes are playing a crucial role in constraining the nature of the dark matter particle through the study of their potential annihilation that could produce very high energy gamma rays from different astrophysical structures. The Cherenkov Telescope Array will provide an unprecedented sensitivity over a range of dark matter mass from ∼100 GeV to ∼30 TeV. In this contribution we review the status of indirect dark matter searches at dwarf spheroidal galaxies.

Wobbly Dark Matter Signals at Cherenkov Telescopes from Long-Lived Mediator Decays

“…Indirect dark matter searches with ground based Imaging Atmospheric Cherenkov Telescopes (IACTs) such as MAGIC [1], HESS [2], and VERITAS [3], which look for TeV-scale gamma rays from dark matter annihilation or decay in dark matter dense astrophysical systems, have been an integral component of the effort to unravel the nature of dark matter. The upcoming Cherenkov Telescope Array (CTA), which offers an order of magnitude improvement in sensitivity over existing telescopes, opens up further possibilities on this frontier [4][5][6].…”