Second large-scale Monte Carlo study for the Cherenkov Telescope Array

TL;DR

This paper reports on the second large-scale Monte Carlo simulations for the Cherenkov Telescope Array, assessing its potential performance and capabilities in gamma-ray astronomy across different sites.

Contribution

It provides updated, realistic estimates of CTA array performance for both hemispheres, guiding design and comparison with current gamma-ray detectors.

Findings

Estimated array performance for Northern and Southern Hemisphere sites.

Comparison of CTA capabilities with existing gamma-ray instruments.

Guidance for optimal array design based on simulation results.

Abstract

The Cherenkov Telescope Array (CTA) represents the next generation of ground based instruments for Very High Energy gamma-ray astronomy. It is expected to improve on the sensitivity of current instruments by an order of magnitude and provide energy coverage from 20 GeV to more than 200 TeV. In order to achieve these ambitious goals Monte Carlo (MC) simulations play a crucial role, guiding the design of CTA. Here, results of the second large-scale MC production are reported, providing a realistic estimation of feasible array candidates for both Northern and Sourthern Hemisphere sites performance, placing CTA capabilities into the context of the current generation of High Energy $\gamma$-ray detectors.