Is the supernova remnant 3C400.2 the result of a single supernova explosion?

摘要

Using numerical simulations carried out employing a new code YGUAZU2D (Raga, Navarro-Gonzalez, & Villagran-Muniz 2000), we find that a single supernova explosion (SN) embedded in a dense medium, occurring close to an interface separating this medium from a less dense medium, is adequate for describing the morphology of the supernova remnant (SNR) 3C400.2.