Exploring the population of Galactic very-high-energy γ-ray sources

0567967 - FZÚ 2023 RIV IT eng C - Conference Paper (international conference)
Abdalla, H. - Abe, H. - Abe, S. - Araudo, Anabella Teresa - Blažek, Jiří - Boháčová, Martina - Chudoba, Jiří - Ebr, Jan - Hamal, Petr - Havelka, Matěj - Janeček, Petr - Mandát, Dušan - Palatka, Miroslav - Pech, Miroslav - Prouza, Michael - Schovánek, Petr - Trávníček, Petr - Vícha, Jakub - Vraštil, Michal … Total 1344 authors
Exploring the population of Galactic very-high-energy γ-ray sources.
Proceedings of Science. Vol. 395. Trieste: Sissa Medilab srl, 2022, č. článku 798. ISSN 1824-8039.
[International Cosmic Ray Conference (ICRC2021) /37./. Berlin (DE), 12.07.2021-23.07.2021]
R&D Projects: GA MŠMT(CZ) EF18_046/0016007; GA MŠMT EF16_013/0001403; GA MŠMT LTT17006; GA MŠMT LM2015046
Grant - others:OP VVV - CTA-CZ II(XE) CZ.02.1.01/0.0/0.0/18_046/0016007
Research Infrastructure: CTA-CZ II - 90105
Institutional support: RVO:68378271
Keywords : CTA * VHE gamma-ray
OECD category: Particles and field physics
https://pos.sissa.it/395/798/pdf

At very high energies (VHE), the emission of γ rays is dominated by discrete sources. Due to the limited resolution and sensitivity of current-generation instruments, only a small fraction of the total Galactic population of VHE γ -ray sources has been detected significantly. The larger part of the population can be expected to contribute as a diffuse signal alongside emission originating from propagating cosmic rays. Without quantifying the source population, it is not possible to disentangle these two components. Based on the H.E.S.S. Galactic plane survey, a numerical approach has been taken to develop a model of the population of Galactic VHE γ -ray sources, which is shown to account accurately for the observational bias. We present estimates of the absolute number of sources in the Galactic plane and their contribution to the total VHE γ -ray emission for five different spatial source distributions.
Permanent Link: https://hdl.handle.net/11104/0339279