Letter to the Editor
Hard X-ray emission from IC443: evidence for a shocked molecular clump?
F. Bocchino 1,2 and
A.M. Bykov 3
Received 17 August 2000 / Accepted 22 September 2000
We report BeppoSAX observations of spatially resolved hard X-ray emission from IC 443, a supernova remnant interacting with a molecular cloud. The emission is shown to come from two localized features spatially correlated with bright molecular emission regions. Both hard X-ray features have soft X-ray counterparts, in one case shifted by arcmin toward the remnant interior. The spectra of X-ray emission from both isolated features have photon index in the MECS regime. The emission detected from the remnant with PDS detector extends up to 100 keV. We discuss the observed properties of the hard X-ray features in relation to non-thermal emission from shocked molecular clumps and pulsar wind nebula.
Key words: acceleration of particles radiation mechanisms: non-thermal ISM: clouds ISM: cosmic rays ISM: individual objects: IC443 ISM: supernova remnants
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© European Southern Observatory (ESO) 2000
Online publication: October 24, 2000