Abstract
Thin nonthermal X-ray filaments are often seen in young supernova remnants. We used data from the 1 Ms Chandra observation of Cassiopeia A to study spectral properties of some of the filaments in this remnant. For all the cases that we examined, the X-ray spectrum across the filaments hardens, at about 10% level, going outward, while observed filament widths depend only weakly on the photon energy. Using a model that includes radiative cooling, advection, and diffusion of accelerated particles behind the shock, we estimated the magnetic field, turbulence level, and shock obliquity.
Published in:
Astrophysical Journal 714,1 (2010) 396-403;
Link to original published article:
http://dx.doi.org/10.1088/0004-637x/714/1/396
Date of Version
5-1-2010
Recommended Citation
Araya, M.; Lomiashvili, D.; Chang, C.; Lyutikov, M.; and Cui, W., "Probing shock properties with nonthermal x-ray filaments in Cas A" (2010). Department of Physics and Astronomy Faculty Publications. Paper 1168.
https://docs.lib.purdue.edu/physics_articles/1168