# The Cherenkov Telescope Array Performance in Divergent Mode

## TL;DR

This paper evaluates the performance of the Cherenkov Telescope Array in divergent mode, an alternative observation strategy designed to increase the field of view for sky surveys and transient source detection.

## Contribution

It provides the first performance estimates from full Monte Carlo simulations of CTA in divergent mode, assessing its potential benefits for sky surveys.

## Key findings

- Increased field of view in divergent mode.
- Potential for more efficient sky surveys.
- Enhanced detection of transient sources.

## Abstract

Two of the Key Science Projects of the Cherenkov Telescope Array (CTA) consist in performing a deep survey of the Galactic and Extragalactic sky, providing an unbiased view of the Universe at energies above tens of GeV. To optimize the time spent to perform the Extragalactic survey, a so-called "divergent mode" of the CTA was proposed as an alternative observation strategy to the traditional parallel pointing in order to increase its instantaneous field of view. The search for transient VHE sources would also benefit from an extended field of view. In the divergent mode, each telescope points to a position in the sky that is slightly offset, in the outward direction, from the center of the field of view. In this contribution, we present the first performance estimation from full Monte Carlo simulation of possible CTA divergent mode setups.