14–24 Jul 2025
CICG - International Conference Centre - Geneva, Switzerland
Europe/Zurich timezone

Detection of a very-high-energy gamma emission at the base of the Fermi Bubbles by H.E.S.S.

21 Jul 2025, 13:20
15m
Room F

Room F

Talk Gamma-Ray Astrophysics GA

Speaker

Dr Emmanuel Moulin

Description

The H.E.S.S. array of imaging atmospheric telescopes is observing the Galactic Center since more that 20 years. The H.E.S.S. collaboration carried out deep very-high-energy (VHE, E>100 GeV) gamma-ray observations in a 25 degree squared region near the Galactic centre devised to reach the best sensitivity to VHE gamma-ray diffuse emission. We report here on the detection by H.E.S.S. of a VHE emission in the TeV energy regime coincident with the base of the Fermi Bubbles’ emission detected in Fermi-LAT observations. Possible emissions scenarios are discussed.

Collaboration(s) H.E.S.S.

Author

Co-authors

Presentation materials