Binary stars as the key to understanding planetary nebulae

  title={Binary stars as the key to understanding planetary nebulae},
  author={David Jones and Henri M. J. Boffin},
  journal={arXiv: Solar and Stellar Astrophysics},
Planetary nebulae are traditionally considered to represent the final evolutionary stage of all intermediate-mass stars ($\sim$0.7-8Msol). Recent evidence seems to contradict this picture. In particular, since the launch of the Hubble Space Telescope it has become clear that planetary nebulae display a wide range of striking morphologies which cannot be understood in a single star scenario, instead pointing towards a binary evolution in a majority of systems. Here, we summarise our current… 

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