Evolutionary state of magnetic chemically peculiar stars

  title={Evolutionary state of magnetic chemically peculiar stars},
  author={Oleg Kochukhov and S Bagnulo},
  journal={Astronomy and Astrophysics},
Context. The photospheres of about 5–10% of the upper main sequence stars exhibit remarkable chemical anomalies. Many of these chemically peculiar (CP) stars have a global magnetic field, the origin of which is still a matter of debate. Aims. We present a comprehensive statistical investigation of the evolution of magnetic CP stars, aimed at providing constraints to the theories that deal with the origin of the magnetic field in these stars. Methods. We have collected from the literature data… 
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