Analysis methods to search for transient events in ground-based Very High Energy gamma-ray astronomy

Abstract

Transient and variable phenomena in astrophysical sources are of particular importance to understand the underlying gamma-ray emission processes. In the very-high energy gamma-ray domain, transient and variable sources are related to charged particle acceleration processes that could for instance help understanding the origin of cosmic-rays. The imaging atmospheric Cherenkov technique used for gamma-ray astronomy above $\sim 100$ GeV is well suited for detecting such events. However, the standard analysis methods are not optimal for such a goal and more sensitive methods are specifically developed in this publication. The sensitivity improvement could therefore be helpful to detect brief and faint transient sources such as Gamma-Ray Bursts.

arXiv comment9 pages, 4 figures, accepted for publication in Astroparticle Physics

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Cited by in corpus (6)

• The H.E.S.S. transients follow-up system
• The H.E.S.S. Gravitational Wave Rapid Follow-up Program
• Searching for TeV gamma-ray emission from SGR\,1935+2154 during its 2020 X-ray and radio bursting phase
• A MeerKAT, e-MERLIN, H.E.S.S. and Swift search for persistent and transient emission associated with three localised FRBs
• The H.E.S.S. extragalactic sky survey with the first decade of observations
• Observation of burst activity from SGR1935+2154 associated to first galactic FRB with H.E.S.S