A CHANDRA VIEW OF NON-THERMAL EMISSION IN THE NORTHWESTERN REGION OF SUPERNOVA REMNANT RCW 86: PARTICLE ACCELERATION AND MAGNETIC FIELDS
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Figueroa_A chandra view.pdf
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Author(s)
Castro, Daniel
Lopez, Laura A.
Slane, Patrick O.
Yamaguchi, Hiroya
Ramirez-Ruiz, Enrico
Figueroa-Feliciano, Enectali
Date Issued
December 2013
Journal
Astrophysical Journal
Publisher
Institute of Physics Publishing
Citation
Castro, Daniel, Laura A. Lopez, Patrick O. Slane, Hiroya Yamaguchi, Enrico Ramirez-Ruiz, and Enectali Figueroa-Feliciano. “ A CHANDRA VIEW OF NON-THERMAL EMISSION IN THE NORTHWESTERN REGION OF SUPERNOVA REMNANT RCW 86: PARTICLE ACCELERATION AND MAGNETIC FIELDS .” The Astrophysical Journal 779, no. 1 (December 10, 2013): 49.
Version
Original manuscript
Abstract
The shocks of supernova remnants are believed to accelerate particles to cosmic ray (CR) energies. The amplification of the magnetic field due to CRs propagating in the shock region is expected to have an impact on both the emission from the accelerated particle population as well as the acceleration process itself. Using a 95 ks observation with the Advanced CCD Imaging Spectrometer on board the Chandra X-Ray Observatory, we map and characterize the synchrotron emitting material in the northwest region of RCW 86. We model spectra from several different regions, both filamentary and diffuse, where emission appears to be dominated by synchrotron radiation. The fine spatial resolution of Chandra allows us to obtain accurate emission profiles across three different non-thermal rims in this region. The narrow width (l ≈ 10''-30'') of these filaments constrains the minimum magnetic field strength at the post-shock region to approximately 80 μG.
MIT Department
Massachusetts Institute of Technology. Department of Physics
MIT Kavli Institute for Astrophysics and Space Research
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DOI of Published Version
https://doi.org/10.1088/0004-637x/779/1/49
