Study of Moonlight observations of PeVatron candidates with CTA

Stage numéro : M1-1920-CT-01
Laboratoire :Centre de Physique des Particules de Marseille Case 902
 163 avenue de Luminy - 13288 Marseille Cedex 9
Directeur :Cristinel Diaconu - 04.91.82.72.01 - diaconu@cppm.in2p3.fr
Correspondant :William Gillard - 04.91.82.72.67 - gillard@cppm.in2p3.fr
Groupe d'accueil :HESS-CTA
Chef de groupe :Heide Costantini 04.91.82.72.57 - costantini@cppm.in2p3.fr
Responsable de stage :Heide Costantini - costant@cppm.in2p3.fr

Thématique : Astroparticules

The Cherenkov Telescope Array (CTA) is a worldwide project to construct the next generation ground based very-high-energy (VHE) gamma-ray instrument [1]. CTA will be situated on both the Northern Hemisphere (La Palma on the Canary Islands) and the Southern Hemisphere (Atacama Desert, Chile) in order to cover the entire sky.

CTA will provide an unprecedented insight into the VHE Universe and in particular will explore the energy region above few tens of TeV for the first time [2]. One of the main goals of CTA is the understanding of the origin of galactic cosmic rays. Astrophysical sources emitting gammas at energies above 50 TeV are very good candidates for cosmic ray accelerators at PeV energies (PeVatrons).

The CPPM is involved since few years in studying the capabilities of CTA in detecting galactic PeVatrons. The goal is to identify promising candidate sources during the galactic plane survey for subsequent deeper observations. The internship will be focused on the investigation of different observation strategies. In particular the possibility offered by the Small Sized Telescopes of CTA to observe during bright Moonlight nights will be investigated with the goal to increase the observation time for promising PeVatron candidates.

References:

[1] https://www.cta-observatory.org/

[2] Science with the Cherenkov Telescope Array: https://arxiv.org/abs/1709.07997

[3] Cherenkov Telescope Array potential in the search for Galactic PeVatrons: https://arxiv.org/abs/1911.06134