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Search for Nonthermal X-Rays from Supernova Remnant Shells

Published online by Cambridge University Press:  25 May 2016

R. Petre ,
J. Keohane ,
U. Hwang ,
G. Allen  and
E. Gotthelf
R. Petre
Affiliation:
NASA/GSFC Greenbelt, MD 20771 USA
J. Keohane
Affiliation:
NASA/GSFC Greenbelt, MD 20771 USA
U. Hwang
Affiliation:
NASA/GSFC Greenbelt, MD 20771 USA
G. Allen
Affiliation:
NASA/GSFC Greenbelt, MD 20771 USA
E. Gotthelf
Affiliation:
NASA/GSFC Greenbelt, MD 20771 USA

Extract

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The suggestion that the shocks of supernova remnants (SNR's) are cosmic ray acceleration sites dates back more than 40 years. While observations of nonthermal radio emission from SNR shells indicate the ubiquity of GeV cosmic ray production, there is still theoretical debate about whether SNR shocks accelerate particles up to the well-known “knee” in the primary cosmic ray spectrum at ~3,000 TeV. Recent X-ray observations of SN1006 and other SNR's may have provided the missing observational link between SNR shocks and high energy cosmic ray acceleration. We discuss these observations and their interpretation, and summarize our ongoing efforts to find evidence from X-ray observations of cosmic ray acceleration in the shells of other SNR's.

Type
Session 3: Diagnostics of High Gravity Objects with X- and Gamma Rays
Information
Symposium - International Astronomical Union , Volume 188: The Hot Universe , 1998 , pp. 117 - 120
Copyright
Copyright © Kluwer 1998 

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