Hard X-ray emission from IC 443: the BeppoSAX view
Our BeppoSAX observations of IC 443
were primarily directed toward isolating and studying its previously known
hard component, thereby to test the hypothesis that this is direct evidence for
very energetic ( @ 100 TeV) cosmic rays. Although our analysis is at an
early stage, it was immediately obvious that we have, with the
a very hard (from 14 to > 30 keV) component which is almost certainly the
counterpart of the EGRET g-ray source 2EG J0618+2234. This object is
offset from the prominent soft thermal emission in IC 443, and is probably
associated with at least one of the two hard (5 - 10 keV) hot spots
detected by the BeppoSAX/MECS.
Both the hot spots and the 2EG source appear to be evidence for
energetic cosmic rays produced where the SNR shock is interacting with a
dense molecular cloud.
File translated from TEX by TTH, version 2.32.
On 16 Jul 1999, 09:18.