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Abstract: Our statistics on Galactic supernova remnants SNRs shows that the electronstemperature $T$ of hard X-ray and the shock waves traveling velocity$\upsilon$ decreases with ages $t$ for all-sort remnants. However, theshock waves swept-up mass $M {su}$ of ISM increases with the age. Second, theremnant radio fluxes $S$ at 1 GHz increase slightly with ISM electronsdensity $n 0$. At last, the number distributions illustrate that thesupernovae SNe initial kinetic energy $E 0$, hydrogen column density$N H$, electrons temperature kT of hard X-ray, magnetic field $B$ and theshock waves swept-up mass $M {su}$ of ISM mainly peaked at $1 \sim 10\times 10^{50}$ ergs, $1 \sim 10\times 10^{21}$ cm$^{-2}$, a few KeV, 100$\mu$G and 10$\sim$100 $M {\odot}$, respectively.



Author: Jian-Wen Xu, Ya-Peng Hu

Source: https://arxiv.org/



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