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

## TL;DR

This paper evaluates the potential of the Cherenkov Telescope Array to detect dark matter signals in dwarf spheroidal galaxies by calculating astrophysical factors using kinematic data analysis.

## Contribution

It provides new estimates of dark matter distribution in dwarf galaxies, aiding future gamma-ray searches with next-generation telescopes.

## Key findings

- New astrophysical factors $J$ and $D$ derived for dwarf galaxies.
- Enhanced understanding of dark matter distribution in dwarf spheroidals.
- Implications for CTA's sensitivity to dark matter signals.

## Abstract

Dwarf spheroidal galaxies are among the best environments that can be studied with Cherenkov telescopes for indirect searches of $\gamma$-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 $\gamma$-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).