Dark matter gamma-ray line searches toward the Galactic Center halo with H.E.S.S. I

Understand

The presence of dark matter is nowadays widely supported by a large body of astronomical and cosmological observations.

• A large amount of dark matter is expected to be present in the central region of the Milky Way.
• Very-high-energy (>100 GeV) {\gamma}-rays can be produced in the annihilation of dark matter particles.
• The H.E.S.S.