The Astrophysical Journal · 1992 · 23 citations · 0 references
Natural SciencesAstronomyPhysicsAstrophysicsInterstellar MediumRadio AstronomyMolecular CloudsStellar EvolutionStellar StructureSupernova RemnantsDense Molecular CoresDense Molecular GasDiffuse Interstellar CloudsDiffuse Interstellar GasMolecular Cloud Gamma-ray EmissionRadio Continuum EmissionRemnant MorphologySupernova Remnant Evolution
The radio and X-ray images of the supernova remnant CTB 109 have the morphology of a semicircular shell. It is shown that such a structure is a natural result of a supernova explosion that occurred 3,000 yr ago near an interface between the diffuse interstellar medium and a dense molecular cloud. The calculated X-ray, infrared, and radio fluxes agree fairly well with the observed values.