HAWC J2227+610: a potential PeVatron candidate for the CTA in the northern hemisphere

0568929 - ASÚ 2023 RIV IT eng C - Conference Paper (international conference)
Abdalla, H. - Abe, H. - Abe, S. - Araudo, Anabella - Karas, Vladimír … Total 1344 authors
HAWC J2227+610: a potential PeVatron candidate for the CTA in the northern hemisphere.
Proceedings of Science. Vol. 395. Trieste: Sissa Medilab srl, 2022, č. článku 904. ISSN 1824-8039.
[International Cosmic Ray Conference /37./. Berlin (DE), 12.07.2021-23.07.2021]
Grant - others:AV ČR(CZ) CONICET-22-06
Program: Bilaterální spolupráce
Institutional support: RVO:67985815
Keywords : astrophysics * high energy * astrophysical phenomena
OECD category: Particles and field physics
https://pos.sissa.it/395/904/pdf

The present work investigates the potentiality of CTA to study the morphology and the spectrum of HAWC J2227+610. For this aim, the source is simulated assuming the hadronic model proposed by the Tibet AS+MD collaboration, recently fitted on multi-wavelength data, and two spatial templates associated to the source nearby molecular clouds. Different CTA layouts and observation times are considered. A 3D map based analysis shows that CTA is able to significantly detect the extension of the source and to attribute higher detection significance to the simulated molecular cloud template compared to the alternative one. CTA data does not allow to disentangle the hadronic and the leptonic emission models. However, it permits to correctly reproduce the simulated parent proton spectrum characterized by a ∼ 500 TeV cutoff.
Permanent Link: https://hdl.handle.net/11104/0340207