Search for VHE gamma-ray emission from Geminga pulsar and Nebula with the MAGIC telescopes

Abstract

The Geminga pulsar appears to be one of the most promising candidates to detect very high energy (VHE > 100 GeV) gamma-ray pulsed emission. In order to find a second pulsar at hundreds of GeVs in the northern sky, we analyzed 63 hours of data. To discuss the connection with HE gamma rays, 6 years of Fermi-LAT data were also analyzed. No significant pulsed emission was found in the MAGIC data. The obtained flux upper limits at 50 GeV lie above the power law extrapolation above 10 GeV from Fermi-LAT data. A search for steady emission from the pulsar wind nebula in the same dataset similarly led to no significant detection.