The diversity of type Ia supernovae from broken symmetries

  title={The diversity of type Ia supernovae from broken symmetries},
  author={Daniel Kasen and Friedrich K. R{\"o}pke and Stan Woosley},
Type Ia supernovae result when carbon-oxygen white dwarfs in binary systems accrete mass from companion stars, reach a critical mass and explode. The near uniformity of their light curves makes these supernovae good ‘standard candles’ for measuring cosmic expansion, but a correction must be applied to account for the fact that the brighter ones have broader light curves. One-dimensional modelling, with a certain choice of parameters, can reproduce this general trend in the width–luminosity… CONTINUE READING