In this exploratory simulation study, we compare the event-progenitor classification potential of a variety of measurable parameters of atmospheric Cherenkov pulses which are produced by ultra-high energy (UHE) γ-ray and hadron progenitors and are likely to be recorded by the TACTIC array of atmospheric Cherenkov telescopes. The parameters derived from Cherenkov images include Hillas, fractal a...

VERITAS is an atmospheric Cherenkov telescope array sited in Tucson, Ari-zona. The array is nearing completion and consists of four, 12 m diameter telescopes. The first telescope in the array has been operating since February 2005, while observations with the full array are expected to begin in January, 2007. We report here in some detail on the performance of the first VERITAS telescope, and b...

The Cherenkov Telescope Array (CTA) is the next ground-based $\gamma$-ray observatory in TeV spectral region operating with Imaging Atmospheric Technique. It based on almost 70 telescopes of different class diameters - LST, MST and SST 23, 12, 4 m, respectively to be installed two sites hemispheres (at La Palma, Canary Islands, near Paranal, Chile). Several thousands reflecting mirror tiles lar...

Abstract Over the past decades Bayesian methods have become increasingly popular in astronomy and physics as stochastic samplers enabled efficient investigation of high-dimensional likelihood surfaces. In this work we develop a hierarchical inference framework to detect presence dark matter annihilation events data from Cherenkov Telescope Array (CTA). Gamma-ray are weighted based on their meas...