Time Variability of Synchrotron X-ray Emission in SNR RX J1713.7-3946

Details Time Variability of Synchrotron X-ray Emission in SNR RX J1713.7-3946 Time Variability of Synchrotron X-ray Emission in SNR RX J1713.7-3946

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2588u&link_type=abstract

Chandra proposal ID #10500627

Computer Science

Scientific paper

A recent detection of synchrotron X-ray variability in SNR RX J1713.7-3946 indicates that the interstellar magnetic field can be largely amplified at the expanding shock of a young SNR through magnetohydrodynamic waves generated by cosmic-rays themselves. Here we propose the follow-up Chandra ACIS-I observations of the northwestern shell of RX J1713.7-3946, with 3 x 30 ks monitoring observations, each spaced by 3-4 months. By tracking intra-year variability, we will infer the time history of electron acceleration and cooling. Also, by comparing with the previous observations, we will measure flux changes in lower brightness filaments as well as an expansion angular velocity, thereby testing the origin of TeV gamma-rays and predictions from a shock-acceleration theory.

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