The surface structure and linib-darkening profile of Betelgeuse

  title={The surface structure and linib-darkening profile of Betelgeuse},
  author={David Burns and J. Baldwin and R. Boysen and C. Haniff and P. Lawson and C. Mackay and J. Rogers and T. R. Scott and P. Warner and Donald M. A. Wilson and John S. Young},
  journal={Monthly Notices of the Royal Astronomical Society},
We present the first resolved image of a star observed with a separated-element optical aperture synthesis telescope. Observations of the M2 lab supergiant Betelgeuse (a Orionis) were made at 830 nm with the Cambridge Optical Aperture Synthesis Telescope (COAST) during 1995 October. Unusually, the source intensity distribution was highly symmetric at the time of observation we find no evidence for the brightness asymmetries observed in earlier studies. Our data indicate a strongly limb-darkened… Expand

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MNRAS, in press This paper has been typeset from a T EXIL
  • 1997