Fig. 3: Modulation of the shock compressibility.
From: The supernova remnant SN 1006 as a Galactic particle accelerator
Azimuthal profile of post-shock density (a) and compression ratio (b) derived from Chandra (blue crosses) and XMM-Newton (grey boxes) spectra. Errors are at the 68% confidence level. Angles are measured counterclockwise from the direction of ambient magnetic field. Compression ratios were obtained by assuming a compression ratio of 4 in Chandra region 0 and in XMM-Newton region e (see Table 1, respectively. The solid curve marks the profile expected for parallel efficiency ξp = 12%, normalized magnetic pressure ξB = 5%, and efficiency of CR re-acceleration ξs = 6%, dashed curve is for ξp = 18% and ξs = 0%, dotted curve is for ξp = 12%, ξs = 6% and ξB = 0% (i. e., without including the effects of the postcursor). Source data are provided as a Source Data file.
