MAGIC measurement of the Crab Nebula spectrum over three decades in energy

Understand

The Crab Pulsar Wind Nebula is the best studied source of $\gamma$-ray astrophysics.

• The contribution of the various soft radiation fields to the Inverse Compton component of its high energy emission, the strenght of the internal magnetic field and the maximum energies reached by primary electrons are however still matter of study.
• The MAGIC stereoscopic system recorded almost 50 hours of Crab Nebula data in the last two years, between October 2009 and April 2011.
• Analysis of this data sample using the latest improvements in the MAGIC stereo software provided an unprecedented differential energy spectrum spanning three decades in energy, from 50 GeV up to 45 TeV.