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Title:
Hard X-ray emission from IC443: evidence for a shocked molecular clump?
Authors:
Bocchino, F.; Bykov, A. M.
Affiliation:
AA( Astrophysics Division, Space Science Department of ESA, ESTEC, Postbus 299, 2200 AG Noordwijk, The Netherlands; Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, 90134 Palermo, Italy), AB(A.F. Ioffe Institute for Physics and Technology, St. Petersburg, Russia, 194021)
Publication:
Astronomy and Astrophysics, v.362, p.L29-L32 (2000) (A&A Homepage)
Publication Date:
10/2000
Origin:
A&A
A&A Keywords:
ACCELERATION OF PARTICLES, RADIATION MECHANISMS: NON-THERMAL, ISM: CLOUDS, ISM: COSMIC RAYS, ISM: INDIVIDUAL OBJECTS: IC443, ISM: SUPERNOVA REMNANTS
Bibliographic Code:
2000A&A...362L..29B

Abstract

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 ~ 2' arcmin toward the remnant interior. The spectra of X-ray emission from both isolated features have photon index <~ 2.0 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.

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