On the origin of the hypervelocity runaway star HD 271791

  title={On the origin of the hypervelocity runaway star HD 271791},
  author={V. Gvaramadze},
  • V. Gvaramadze
  • Published 2009
  • Physics
  • We discuss the origin of the runaway early B-type star HD271791 and show that its extremely high velocity (\simeq 530-920 km/s) cannot be explained within the framework of the binary-supernova ejection scenario. Instead, we suggest that HD271791 attained its peculiar velocity in the course of a strong dynamical encounter between two hard massive binaries or via an exchange encounter between a hard massive binary and a very massive star, formed through runaway mergers of ordinary massive stars… CONTINUE READING

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