The Real Time Analysis framework of the Cherenkov Telescope Array's Large-Sized Telescope

TL;DR

This paper presents recent advances in real-time data analysis algorithms for the Large-Sized Telescopes of the Cherenkov Telescope Array, enabling rapid detection and study of transient gamma-ray sources.

Contribution

It introduces new algorithms for event reconstruction and background rejection tailored for real-time analysis in the LST-1 prototype.

Findings

Enhanced real-time detection capabilities demonstrated

Algorithms improve transient source identification speed

Framework readiness for integration into CTAO systems

Abstract

The Large-Sized Telescopes (LSTs) of the Cherenkov Telescope Array Observatory (CTAO) will play a crucial role in the study of transient gamma-ray sources, such as gamma-ray bursts and flaring active galactic nuclei. The low energy threshold of LSTs makes them particularly well suited for the detection of these phenomena. The ability to detect and analyze gamma-ray transients in real-time is essential for quickly identifying and studying these rare and fleeting events. In this conference, we will present recent advances in the real-time analysis of data from the LST-1, the first prototype of LST located in the Canary island of La Palma. We will discuss in particular the development of new algorithms for event reconstruction and background rejection. These advances will enable rapid identification and follow-up observation of transient gamma-ray sources, making the LST-1 a powerful tool for the study of the dynamic universe. The implementation of this framework in the future Array Control and Data Acquisition System (ACADA) of CTAO will be discussed as well, based on the experience with LST.