ROTATIONAL AND RADIAL VELOCITIES FOR A SAMPLE OF 761 HIPPARCOS GIANTS AND THE ROLE OF BINARITY

@article{Massarotti2008ROTATIONALAR,
  title={ROTATIONAL AND RADIAL VELOCITIES FOR A SAMPLE OF 761 HIPPARCOS GIANTS AND THE ROLE OF BINARITY},
  author={Alessandro Massarotti and D. Latham and R. Stefanik and J. Fogel},
  journal={The Astronomical Journal},
  year={2008},
  volume={135},
  pages={209-231}
}
We present rotational and radial velocities for a sample of 761 giants selected from the Hipparcos Catalogue to lie within 100 pc of the Sun. Our original goal was to examine stellar rotation in field giants using spectroscopic line broadening to look for evidence of excess rotation that could be attributed to planets that were engulfed as the parent stars expanded. Thus we were obliged to investigate other sources of line broadening, including tidal coupling in close binaries and… Expand
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