Study of the effect of turbulent interstellar medium on the morphology of young supernova remnants

Context. Supernova remnants (SNR) are one of the main sources galactic cosmic rays acceleration. This acceleration, believed to happen at blast wave front, leads an energy loss shock front. results in apparent proximity between and contact discontinuity. Aims. In this article, we study effect that turbulent-like density perturbations interstellar medium (ISM) have on evolution young SNRs. We focus impact such fluctuations SNRs structure more precisely resulting distance Since acceleration is necessary explain distance, indirectly put into question Methods. performed a set purely hydrodynamic three-dimensional simulations without ray co-expanding frame. randomly initialised variation following Kolmogorov power law. The ratios radii wave, discontinuity reverse then compared astronomical observations. Results. addition perturbation doesnt significantly change average ratio radii. However, show higher growth interfacial instabilities presence turbulent ISM. deformation could wave. They also plateau radial distribution line sight velocity associated with observations Tycho. Conclusions. ISM should not be neglected simulation SNR as they comparable structure.