A giant planet orbiting the ‘extreme horizontal branch’ star V 391 Pegasi

  title={A giant planet orbiting the ‘extreme horizontal branch’ star V 391 Pegasi},
  author={Roberto Silvotti and S. Schuh and Rimvydas Janulis and J-E. Solheim and Stefano Bernabei and Roy {\O}stensen and Terry D. Oswalt and Ivan Bruni and Roberto Gualandi and Alfio Bonanno and G{\'e}rard Vauclair and M D Reed and C.-W. Chen and Elia Leibowitz and Margit Papar{\'o} and A S Baran and St{\'e}phane Charpinet and No{\"e}l Dolez and Steven D. Kawaler and Donald W. Kurtz and Paweł Moskalik and Reed L. Riddle and Staszek Zoła},
After the initial discoveries fifteen years ago, over 200 extrasolar planets have now been detected. Most of them orbit main-sequence stars similar to our Sun, although a few planets orbiting red giant stars have been recently found. When the hydrogen in their cores runs out, main-sequence stars undergo an expansion into red-giant stars. This expansion can modify the orbits of planets and can easily reach and engulf the inner planets. The same will happen to the planets of our Solar System in… 
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  • E. Villaver
  • Physics, Geology
    Proceedings of the International Astronomical Union
  • 2011
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