Widespread Atomic Gas Emission Reveals the Rotation of the β Pictoris Disk

@article{Olofsson2001WidespreadAG,
  title={Widespread Atomic Gas Emission Reveals the Rotation of the β Pictoris Disk},
  author={G. Olofsson and R. Liseau and A. Brandeker},
  journal={The Astrophysical Journal},
  year={2001},
  volume={563}
}
  • G. Olofsson, R. Liseau, A. Brandeker
  • Published 2001
  • Physics
  • The Astrophysical Journal
  • We present high-resolution Na I D spectroscopy of the β Pictoris disk, and the resonantly scattered sodium emission can be traced from less than 30 AU to at least 140 AU from the central star. This atomic gas is coexistent with the dust particles, suggestive of a common origin or source. The disk rotates toward us in the southwest and away from us in the northeast. The velocity pattern of the gas finally provides direct evidence that the faint linear feature seen in images of the star is a… CONTINUE READING
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