X-ray limits on the progenitor system of the Type Ia supernova 2017ejb

  title={X-ray limits on the progenitor system of the Type Ia supernova 2017ejb},
  author={Charles D. Kilpatrick and David A. Coulter and Georgios Dimitriadis and Ryan J. Foley and David O. Jones and Yen-Chen Pan and Anthony L. Piro and Armin Rest and C{\'e}sar Rojas-Bravo},
  journal={Monthly Notices of the Royal Astronomical Society},
We present deep X-ray limits on the presence of a pre-explosion counterpart to the low-luminosity Type Ia supernova (SN Ia) 2017ejb. SN 2017ejb was discovered in NGC 4696, a well-studied elliptical galaxy in the Centaurus cluster with 894 ks of Chandra imaging between 14 and 3 years before SN 2017ejb was discovered. Using post-explosion photometry and spectroscopy of SN 2017ejb, we demonstrate that SN 2017ejb is most consistent with low-luminosity SNe Ia such as SN 1986G and SN 1991bg… Expand

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