Fermi Gamma-ray Space Telescope

Pulsars at Very High Energies with the MAGIC Telescopes and the Fermi-LAT

S. Bonnefoy
MAGIC collaboration

Abstract:

The MAGIC telescopes are a set of two imaging atmospheric Cherenkov telescopes, located at the Roque de los Muchachos Observatory, on La Palma island (Spain). They were designed to achieve the lowest possible energy threshold, to overlap with space telescope as Fermi-LAT. One of the main targets of the MAGIC telescopes is the study of gamma-ray pulsars. In 2008, MAGIC discovered pulsed emission from the Crab pulsar above 25 GeV, ruling out low altitudes emission models which predicted a sharp super-exponential cut-off at few GeV. With a second telescope operating since 2009, MAGIC has continued studying the Crab pulsar. This has led to the discovery of pulsed emission up to 400 GeV in 2012, the emission from the bridge in 2014, and recently, the extension of the Crab pulsar spectrum up to the TeV scale. In order to better understand pulsar physics, we would need to find other pulsars exhibiting very high energy emission as the one discovered in the Crab. With this purpose MAGIC has observed other pulsars, and specially the Geminga pulsar. In order to discuss the connection between ground based telescopes and space born satellites we also analyzed 6 years of Fermi-LAT data. In this talk, I will present the latest results of pulsar studies with the MAGIC telescopes, highlighting the synergies between MAGIC and the Fermi-LAT to understand the high energy emission from pulsars.