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| Paper: |
Modeling Supernova Remnants Using Radio and X-ray Data |
| Volume: |
438, The Dynamic Interstellar Medium: A Celebration of the Canadian Galactic Plane Survey |
| Page: |
354 |
| Authors: |
West, J. L.; Safi-Harb, S.; Foster, T. |
| Abstract: |
We are undertaking a project to model radio continuum and polarization emission from
supernova remnants (SNRs). We will make use of the International Galactic Plane Survey
data and the new GALFACTS survey, which provide fully-sampled radio polarization data at
1420 MHz. We will construct physically-consistent models of extended polarized emission
and depolarization effects on the background, and observe these models with a simulated
radio telescope beam to produce synthetic Stokes Q & U data. These will be compared to
observations to constrain the line-of-sight magnetic field in selected Galactic SNRs.
Using X-ray data, we will disentangle the thermal and non-thermal X-ray emission which
will provide additional constraints on the modeled electron density and
magnetic field. We are starting with analysis of the SNR S147, which shows
some interesting depolarization in the shell in addition to a polarized
region that is coincident with the pulsar detected in X-rays. We present
a preliminary model as well as an investigation of the polarized feature that
may be a detection of the pulsar wind nebula. |
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