News from the very-high-energy sky seen with H.E.S.S

TL;DR

The H.E.S.S. experiment has been observing the TeV sky for 16 years, shifting focus from discovering new sources to studying transients and known objects, especially in extragalactic astronomy.

Contribution

This paper summarizes recent highlights from H.E.S.S. observations, emphasizing its long-term data and focus on transients and extragalactic sources.

Findings

Detection of new TeV sources

Insights into transient phenomena

Detailed studies of extragalactic objects

Abstract

The H.E.S.S. experiment, the largest Cherenkov telescope array to date, has been observing the sky at TeV energies for the past 16 years. Its location in the Southern hemisphere provides H.E.S.S. with equally good access to Galactic and extra-galactic sources. The focus of observations is now gradually shifting from discoveries of new TeV emitters to studies of transients and the detailed exploration of known sources. A few recent highlights from these observations are presented here, with a focus on extragalactic observations.