Aldebaran b’s Temperate Past Uncovered in Planet Search Data

  title={Aldebaran b’s Temperate Past Uncovered in Planet Search Data},
  author={Will M. Farr and Benjamin J. S. Pope and Guy R. Davies and Thomas S. H. North and Timothy R. White and Jim W. Barrett and Andrea Miglio and Mikkel N. Lund and Victoria Antoci and Mads Fredslund Andersen and Frank Grundahl and Daniel Huber},
  journal={The Astrophysical Journal Letters},
  • W. Farr, B. Pope, D. Huber
  • Published 27 February 2018
  • Physics, Geology
  • The Astrophysical Journal Letters
The nearby red giant Aldebaran is known to host a gas giant planetary companion from decades of ground-based spectroscopic radial velocity measurements. Using Gaussian Process-based Continuous Auto-Regressive Moving Average models, we show that these historic data also contain evidence of acoustic oscillations in the star itself, and verify this result with further dedicated ground-based spectroscopy using the SONG telescope and space-based photometry with the Kepler Space Telescope. From the… 
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