6 papers
Model for Synchrotron Emission from Shell Supernova Remnants in Nonuniform Interstellar Medium and Nonuniform Magnetic Field
O. Petruk
Possibility to model the high energy synchrotron emission (in X- and gamma-rays) from supernova remnants is an important task for modern astronomy and astrophysics, because it may…
Thermal X-ray emission of the remnants of ashperical Supernova explosions
O. Petruk
Evolution of adiabatic remnants of an aspherical supernova explosion in uniform medium are considered. Thermal X-ray emission of such remnants are investigated. It is shown that in…
A New Model for the Thermal X-ray Composites and the Neutral Pion Decay Gamma-Rays from Supernova Remnants
O. Petruk
Recent nonthermal X-ray and gamma-ray observations, attributed to electron emission processes, for the first time give an experimental confirmation that electrons are accelerated o…
Approximations of the self-similar solution for blastwave in a medium with power-law density variation
O. Petruk
Approximations of the Sedov self-similar solution for a strong point explosion in a medium with the power-law density distribution ρ^o\propto r^{-m} are reviewed and their accuracy…
Supernova remnants as cosmic ray accelerators. SNR IC 443
B. Hnatyk, O. Petruk
We examine the hypothesis that some supernova remnants (SNRs) may be responsible for some unidentified gamma-ray sources detected by EGRET instrument aboard the Compton Gamma Ray O…
Evolution of supernova remnants in the interstellar medium with a large-scale density gradient. II. The 2-D modelling of the evolution and X-ray emission of supernova remnant RCW86
O. Petruk
The results of the 2D modelling of Supernova remnant (SNR) RCW86 are given. Models of this remnant, which for the first time interpret the anisotropy of surface brightness as a res…