No surviving evolved companions of the progenitor of SN 1006

@article{Hernndez2012NoSE,
  title={No surviving evolved companions of the progenitor of SN 1006},
  author={Jonay I. Gonz{\'a}lez Hern{\'a}ndez and Pilar Ruiz-Lapuente and H. M. Tabernero and David Montes and Ram{\'o}n Canal and Javier M{\'e}ndez and Luigi R. Bedin},
  journal={Nature},
  year={2012},
  volume={489},
  pages={533-536}
}
Type Ia supernovae are thought to occur when a white dwarf made of carbon and oxygen accretes sufficient mass to trigger a thermonuclear explosion. The accretion could be slow, from an unevolved (main-sequence) or evolved (subgiant or giant) star (the single-degenerate channel), or rapid, as the primary star breaks up a smaller orbiting white dwarf (the double-degenerate channel). A companion star will survive the explosion only in the single-degenerate channel. Both channels might contribute… Expand
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