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Mikkel Nørup Lund

Asteroseismic inference on rotation, gyrochronology and planetary system dynamics of 16 Cygni

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

DOI

  • G. R. Davies
  • ,
  • W. J. Chaplin
  • ,
  • W. M. Farr, Danmark
  • R. A. Garcia
  • ,
  • M. N. Lund
  • S. Mathis
  • ,
  • T. S. Metcalfe
  • T. Appourchaux
  • ,
  • S. Basu
  • ,
  • O. Benomar
  • ,
  • T. L. Campante, Birmingham University
  • ,
  • T. Ceillier
  • ,
  • Y. Elsworth
  • ,
  • R. Handberg
  • D. Salabert
  • ,
  • D. Stello
The solar analogs 16 Cyg A and 16 Cyg B are excellent asteroseismic targets in the \Kepler field of view and together with a red dwarf and a Jovian planet form an interesting system. For these more evolved Sun-like stars we cannot detect surface rotation with the current \Kepler data but instead use the technique of asteroseimology to determine rotational properties of both 16 Cyg A and B. We find the rotation periods to be $23.8^{+1.5}_{-1.8} \rm \, days$ and $23.2^{+11.5}_{-3.2} \rm \, days$, and the angles of inclination to be $56^{+6}_{-5} \, ^{\circ}$ and $36^{+17}_{-7} \, ^{\circ}$, for A and B respectively. Together with these results we use the published mass and age to suggest that, under the assumption of a solar-like rotation profile, 16 Cyg A could be used when calibrating gyrochronology relations. In addition, we discuss the known 16 Cyg B star-planet eccentricity and measured low obliquity which is consistent with Kozai cycling and tidal theory.
OriginalsprogUdefineret/Ukendt
TidsskriftRoyal Astronomical Society. Monthly Notices
Vol/bind446
Nummer3
Sider (fra-til)2959-2966
Antal sider8
ISSN0035-8711
DOI
StatusUdgivet - 5 nov. 2014

    Forskningsområder

  • astro-ph.SR

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