Secondary fe-peak nuclei in the tycho supernova remnant
Document typeConference lecture
Rights accessOpen Access
The Mn to Cr mass ratio in supernova ejecta has recently been proposed as a tracer of Type Ia SN progenitor metallicity. We review the advantages and problems of this observable quantity, and discuss them in the framework of two Galactic supernova remnants: the well known Tycho SNR and W49B, an older object that has been tentatively classified as Type Ia. The fluxes of the Mn and Cr Ka lines in the X-ray spectra of these SNRs observed by the Suzaku and ASCA satellites suggest progenitors of supersolar metallicity for both objects.
CitationBadenes, C.; Bravo, E.; Hughes, J. Secondary fe-peak nuclei in the tycho supernova remnant. A: International Symposium on Nuclear Astrophysics - Nuclei in the Cosmos. "10th Symposium on Nuclei in the Cosmos". 2008, p. 1-5.