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Title:
Fine-structure in the nonthermal X-ray emission of SNR RX J1713.7-3946 revealed by Chandra
Authors:
Uchiyama, Y.; Aharonian, F. A.; Takahashi, T.
Affiliation:
AA(Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan and Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan ), AB(Max-Planck-Institut für Kernphysik, Postfach 103980, 69029 Heidelberg, Germany ), AC(Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan and Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan )
Publication:
Astronomy and Astrophysics, v.400, p.567-574 (2003) (A&A Homepage)
Publication Date:
03/2003
Origin:
A&A
A&A Keywords:
radiation mechanisms: non-thermal, ISM: supernova remnants, ISM: cosmic rays -, stars: supernovae: individual: RX J1713.7-3946
DOI:
10.1051/0004-6361:20021824
Bibliographic Code:
2003A&A...400..567U

Abstract

We present morphological and spectroscopic studies of the northwest rim of the supernova remnant RX J1713.7-3946 based on observations by the Chandra X-ray observatory. We found a complex network of nonthermal (synchrotron) X-ray filaments, as well as a ``void'' type structure - a dim region of a circular shape - in the northwest rim. It is remarkable that despite distinct brightness variations, the X-ray spectra everywhere in this region can be well fitted with a power-law model with photon index ranging Gamma = 2.1-2.5. We briefly discuss some implications of these results and argue that the resolved X-ray features in the northwest rim may challenge the perceptions of the standard diffusive shock-acceleration models concerning the production, propagation and radiation of relativistic particles in supernova remnants.
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