Szczegóły publikacji
Opis bibliograficzny
Prospects for annihilating dark matter from M31 and M33 observations with the Cherenkov Telescope Array / Miltiadis Michailidis, Lorenzo Marafatto, Denys Malyshev, Fabio Iocco, Gabrijela Zaharijas, Olga SERGIJENKO, Maria Isabel Bernardos, Christopher Eckner, Alexey Boyarsky, Anastasia Sokolenko, Andrea Santangelo // Journal of Cosmology and Astroparticle Physics [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1475-7516. — 2023 — no. 8 art. no. 073, s. [2], 1–35. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 29–35, Abstr. — Publikacja dostępna online od: 2023-08-29. — O. Sergijenko – dod. afiliacje: Astronomical Observatory, Taras Shevchenko National University of Kyiv; Main Astronomical Observatory of the National Academy of Sciences of Ukraine
Autorzy (11)
- Michailidis Miltiadis
- Marafatto Lorenzo
- Malyshev Denys
- Iocco Fabio
- Zaharijas Gabrijela
- AGHSergijenko Olga
- Bernardos Martín Maria Isabel
- Eckner Christopher
- Boyarsky Alexey
- Sokolenko Anastasia
- Santangelo Andrea
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 149785 |
|---|---|
| Data dodania do BaDAP | 2023-11-16 |
| Tekst źródłowy | URL |
| DOI | 10.1088/1475-7516/2023/08/073 |
| Rok publikacji | 2023 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Journal of Cosmology and Astroparticle Physics |
Abstract
M31 and M33 are the closest spiral galaxies and the largest members (together with the Milky Way) of the Local group, which makes them interesting targets for indirect dark matter searches. In this paper we present studies of the expected sensitivity of the Cherenkov Telescope Array (CTA) to an annihilation signal from weakly interacting massive particles from M31 and M33. We show that a 100 h long observation campaign will allow CTA to probe annihilation cross-sections up to 〈συ〉 ≈ 5·10-25 cm3 s-1 for the τ+τ- annihilation channel (for M31, at a DM mass of 0.3 TeV), improving the current limits derived by HAWC by up to an order of magnitude. We present an estimate of the expected CTA sensitivity, by also taking into account the contributions of the astrophysical background and other possible sources of systematic uncertainty. We also show that CTA might be able to detect the extended emission from the bulge of M31, detected at lower energies by the Fermi/LAT.
