2016/03/14 by L. Ambrogi, Lucia Ambrogi, E. de Oña Wilhelmi +3 · 1 citation
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Cardinal point #Cherenkov Telescope Array #Cherenkov radiation #Dark Matter and Cosmic Phenomena #Detector #Galactic plane #Galaxy #Gamma ray #Gamma-ray astronomy #Gaussian #Neutrino Physics Research #Optics #Physics #Point spread function #Telescope #astro-ph.HE #astro-ph.IM
paper · pdf · doi:10.1016/j.astropartphys.2016.03.004
16 pages, 18 figures, accepted for publication in Astroparticle Physics
arxiv created 2016/03/14 · openalex publication_date 2016/03/21 · arxiv updated 2016/04/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The potential of an array of imaging atmospheric Cherenkov telescopes to detect gamma-ray sources in complex regions has been investigated. The basic characteristics of the gamma-ray instrument have been parametrized using simple analytic representations. In addition to the ideal (Gaussian form) point spread function (PSF), the impact of more realistic non-Gaussian PSFs with tails has been considered. Simulations of isolated point-like and extended sources have been used as a benchmark to test and understand the response of the instrument. The capability of the instrument to resolve multiple sources has been analyzed and the corresponding instrument sensitivities calculated. The results are of particular interest for weak gamma-ray emitters located in crowded regions of the Galactic plane, where the chance of clustering of two or more gamma-ray sources within 1 degree is high.