Young Remnants of Type Ia Supernovae and Their Progenitors: A Study of SNR G1.9+0.3

  title={Young Remnants of Type Ia Supernovae and Their Progenitors: A Study of SNR G1.9+0.3},
  author={S. Chakraborti and Francesca Childs and A. Soderberg},
  journal={arXiv: High Energy Astrophysical Phenomena},
Type Ia supernovae, with their remarkably homogeneous light curves and spectra, have been used as standardizable candles to measure the accelerating expansion of the Universe. Yet, their progenitors remain elusive. Common explanations invoke a degenerate star (white dwarf) which explodes upon reaching close to the Chandrasekhar limit, by either steadily accreting mass from a companion star or violently merging with another degenerate star. We show that circumstellar interaction in young… Expand

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