Non-equilibrium Ionisation in Tycho's Supemova Remnant

W. Brinkmann
1990 International Astronomical Union Colloquium  
AbstractWe present a detailed numerical study of the X-ray emission of Tycho's supernova remnant. Using Nomoto's W7 model of an exploding white dwarf as intial condition we follow the hydrodynamical and ionisation evolution for different densities of the interstellar medium and compare the emitted spectra with EXOSAT GSPC observations. The results indicate that the density of the ambient medium is 0.5 ≤ no ≤ 1.0 cm-3, the distance to Tycho is about 3 kpc.
doi:10.1017/s0252921100012264 fatcat:jepll6vojnbylnmbmmshx2lfjm