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New results on the Geminga pulsar from the prototype of the Large-Sized Telescope of CTAO

May 8, 2025
4:35 PM - 5:05 PM
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Pupin 1402

Seminar by Giulia Brunelli, Università di Bologna / INAF-OAS

The recent discovery by Imaging Atmospheric Cherenkov Telescopes (IACTs) of Very-High-Energy pulsed emission from the Crab and the Vela pulsars opened a new window on the study of gamma-ray pulsars. Classical models explain the Fermi-LAT pulsed spectrum through curvature radiation mechanisms, which cannot easily explain gamma-ray emission at hundreds of GeV or even TeV. Geminga is the third pulsar detected by IACTs and the first middle-aged one showing emission up to 75 GeV. During this talk, I will discuss the most recent results obtained by the prototype of the Large-Sized Telescope of the upcoming Cherenkov Telescope Array Observatory, i.e. the LST-1, on the gamma-ray emission of the Geminga pulsar.

Host: Kaya Mori