The End of Amnesia: Measuring the Metallicities of Type Ia SN Progenitors with Manganese Lines in Supernova Remnants
Carles Badenes, Eduardo Bravo, and John P. Hughes
TL;DR
This paper discusses how the Mn to Cr mass ratio in supernova remnants can be used to estimate the metallicity of Type Ia supernova progenitors, with analysis of Tycho's remnant indicating a supersolar metallicity.
Contribution
It evaluates the use of Mn to Cr line flux ratios as a metallicity tracer and applies this method to Tycho's supernova remnant.
Findings
Mn to Cr ratio suggests supersolar progenitor metallicity
Analysis supports Mn and Cr lines as effective metallicity indicators
Provides insights into the progenitor characteristics of Type Ia supernovae
Abstract
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 the Tycho Supernova Remnant. The fluxes of the Mn and Cr Kalpha lines in the X-ray spectra of Tycho observed by the Suzaku satellite suggests a progenitor of supersolar metallicity.
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