出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:We study the effect of cosmic-ray acceleration on the plasma temperature behind shock fronts, in order to characterize the cosmic-ray acceleration efficiencies. We combine post-shock plasma temperatures with shock velocities and show that this leads to a direct measurement of the cosmicray pressure behind the shock front. Additionally, we tie this pressure directly to the fraction of energy taken away from the shock by escaping particles. We show that at least some young supernova remnants transfer a significant amount of their energy into cosmic rays and these cosmic rays take away a substantial amount of the supernova energy by escaping the remnant.