3-7 noviembre 2025
Europe/Madrid timezone

Sensitivity of the Cherenkov Telescope Array Observatory to Dwarf Irregular Galaxies

6 nov. 2025 17:00
15m
Room 3.1+3.2 (ADEIT)

Room 3.1+3.2

ADEIT

Talk Dark matter: indirect detection Dark Matter: Indirect Detection

Ponente

Jaume Zuriaga-Puig (IFT UAM/CSIC)

Descripción

Dwarf irregular galaxies (dIrrs) are rotationally supported galaxies, located in the Local Volume, and are considered to host star-forming regions with a low star-forming rate. Their gamma-ray background signal is expected to be low, making them interesting targets for WIMP Dark Matter (DM) indirect searches. Following previous works on dIrrs, we present the best four dIrrs targets for the forthcoming Cherenkov Telescope Array Observatory (CTAO). Since dIrrs have not been detected yet in gamma rays, in this work, we first explore the detection prospects of dIrrs as astrophysical emitters. Secondly, because the cusp-core problem is important for these objects, we compute the sensitivity prospects to a DM annihilating signal adopting both profiles, including halo substructures. Finally, we show that our DM sensitivity results are competitive with benchmark targets such as galaxy clusters.

Autor primario

Jaume Zuriaga-Puig (IFT UAM/CSIC)

Coautores

Materiales de la presentación

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