Physics seminar

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Date/Time:Friday, 13 Nov 2009 from 4:10 pm to 5:10 pm
Location:Physics Hall 3
Phone:515-294-2298
Channel:Astronomy
Categories:Lectures
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"A Two Zone Model of Nonthermal Radiation from SNR RX J1713.7-3946," Song Park, graduate student, ISU physics and astronomy.

We study the radiation from accelerated charged particles in a supernova remnant using a nested leaky box model - the "Two Zone Model".
With two different particle spectra established by the two zone model, we explore the leptonic scenario with a hadronic component to reproduce X-ray and TeV gamma-ray spectrum of RX J1713.7-3946 observed by Suzaku and HESS repectively.
After successfully fitting the model spectrum to the observation, we test whether the observed filamentary structure could be formed in a damped magnetic field by integrating synchrotron X-rays from the source zone along the line of sight. We find we do not need a highly enhanced magnetic field all over the SNR to explain the small-scale structures.