Bibcode
                                    
                            Tenorio-Tagle, G.; Rosz˙Yczka, M.; Terlevich, R.; Cox, D.; Miller, W.; Franco, J.
    Bibliographical reference
                                    Revista Mexicana de Astronomia y Astrofisica, Vol. 27, p. 133 - 136
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                        11
            
                        1993
            
  Citations
                                    15
                            Refereed citations
                                    11
                            Description
                                    The evolution and spectra from a compact supernova remnant evolving in a
high-density circumstellar medium with a density of
107cm-3 are presented. The radiation emitted by
the shocked region can self-ionize the cooling shell and a large region
of the surrounding medium. The resulting line ratios from the
photoionized zones are similar to those observed in active galactic
nuclei.