Sensitivity to point-like sources of the ALTO atmospheric particle detector array, designed for $\rm 200\,GeV$--$\rm 50\,TeV$ $γ$-ray astronomy

M. Punch; M. Senniappan; Y. Becherini; G. Kukec Mezek; S. Thoudam; T. Bylund; J. -P. Ernenwein

paper

Sensitivity to point-like sources of the ALTO atmospheric particle detector array, designed for $200 GeV$ -- $50 TeV$ $γ$ -ray astronomy

arXiv:2303.15248

Abstract

In the context of atmospheric shower arrays designed for $γ$ -ray astronomy and in the context of the ALTO project, we present: a study of the impact of heavier nuclei in the cosmic-ray background on the estimated $γ$ -ray detection performance on the basis of dedicated Monte Carlo simulations, a method to calculate the sensitivity to a point-like source, and finally the required observation times to reach a firm detection on a list of known point-like sources.

16 pages, 7 figures, accepted for publication in JHEAP (Journal of High-Energy Astrophysics)

Sensitivity to point-like sources of the ALTO atmospheric particle detector array, designed for 200GeV--50TeV γ-ray astronomy

Abstract

Sensitivity to point-like sources of the ALTO atmospheric particle detector array, designed for $200 GeV$ -- $50 TeV$ $γ$ -ray astronomy