3D Selection of 167 Substellar Companions to Nearby Stars

  title={3D Selection of 167 Substellar Companions to Nearby Stars},
  author={Fabo Feng and R. Paul Butler and Steven S. Vogt and Matthew S. Clement and Christopher G. Tinney and Kaiming Cui and Masataka Aizawa and Hugh R. A. Jones and J. I. Bailey and Jennifer A. Burt and Bradley D. Carter and Jeffrey D. Crane and Francesco Flammini Dotti and Bradford P. Holden and Bo Ma and Masahiro Ogihara and Rebecca Oppenheimer and S. J. O’Toole and Stephen A. Shectman and Robert A. Wittenmyer and Sharon Xuesong Wang and Duncan J. Wright and Yifan Xuan},
  journal={The Astrophysical Journal Supplement Series},
We analyze 5108 AFGKM stars with at least five high-precision radial velocity points, as well as Gaia and Hipparcos astrometric data, utilizing a novel pipeline developed in previous work. We find 914 radial velocity signals with periods longer than 1000 days. Around these signals, 167 cold giants and 68 other types of companions are identified, through combined analyses of radial velocity, astrometry, and imaging data. Without correcting for detection bias, we estimate the minimum occurrence… 

Orbital Migration of Protoplanets in a Marginally Gravitationally Unstable Disk. II. Migration, Merging, and Ejection

  • A. Boss
  • Geology, Physics
    The Astrophysical Journal
  • 2023
Protoplanets formed in a marginally gravitationally unstable (MGU) disk by either core accretion or disk instability will be subject to dynamical interactions with massive spiral arms, possibly



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