The quest for dark matter in dwarf spheroidal galaxies with the Cherenkov Telescope Array

Dwarf spheroidal galaxies are among the best environments that can be studied with Cherenkov telescopes for indirect searches of γ -ray signals coming from dark matter self-interaction (annihilation or decay), due to their proximity and negligible background emission. We present new determinations o...

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Bibliographic Details
Published inEPJ Web of Conferences Vol. 209; p. 1024
Main Authors Saturni, Francesco G., Rodríguez-Fernández, Gonzalo, Morselli, Aldo
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 2019
Subjects
Arrays
Astronomical instruments
Celestial bodies
Dark matter
Dwarf galaxies
Galactic halos
Particle mass
Spheroidal galaxies
Telescopes
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Summary:Dwarf spheroidal galaxies are among the best environments that can be studied with Cherenkov telescopes for indirect searches of γ -ray signals coming from dark matter self-interaction (annihilation or decay), due to their proximity and negligible background emission. We present new determinations of the dark-matter amount – i.e. the astrophysical factors J and D – in dwarf-galaxy halos obtained through the MCMC Jeans analysis of their brightness and kinematic data. Such factors are of great importance to test the performances of the next-generation γ -ray instruments such as the Cherenkov Telescope Array in detecting dark-matter signals from astronomical environments, or constraining the limits to dark-matter physics parameters (particle mass and lifetime, annihilation cross section).
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201920901024