Eventdisplay: An Analysis and Reconstruction Package for Ground-based Gamma-ray Astronomy

TL;DR

Eventdisplay is a comprehensive software package designed for analyzing and reconstructing data from ground-based gamma-ray observatories, integrating calibration, image analysis, and gamma-hadron separation techniques.

Contribution

It introduces a full analysis suite for gamma-ray data, combining image processing, stereo analysis, and multivariate gamma-hadron separation methods, evolving from a display tool to a complete analysis package.

Findings

Demonstrates effective gamma-ray event reconstruction

Provides calibration and response function calculation routines

Showcases selected analysis results from the package

Abstract

Eventdisplay is a software package for the analysis and reconstruction of data and Monte Carlo events from ground-based gamma-ray observatories such as VERITAS and CTA. It was originally developed as a display tool for data from the VERITAS prototype telescope, but evolved into a full analysis package with routines for calibration, FADC trace integration, image and stereo parameter analysis, response function calculation, and high-level analysis steps. Eventdisplay makes use of an image parameter analysis combined with gamma-hadron separation methods based on multivariate algorithms. An overview of the reconstruction methods and some selected results are presented in this contribution.