Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 446, Issue 3, Pages 2959-2966Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stu2331
Keywords
planet-star interactions; stars: oscillations; stars: rotation
Categories
Funding
- CNES GOLF
- CoRoT at CEA
- ANR (Agence Nationale de la Recherche, France) programme IDEE [ANR-12-B505-0008]
- European Community [312844, 269194]
- UK Science and Technology Facilities Council (STFC)
- Australian Research Council
- NSF [AST-1105930]
- NASA [NNX13AE70G]
- Danish National Research Foundation [DNRF106]
- ASTERISK - European Research Council [267864]
- Programme National de Planetologie (CNRS/INSU)
- Campus Spatial de l'Universite Paris Diderot
- Science and Technology Facilities Council [ST/J001163/1, ST/I006269/1 Gravitational Waves, ST/K000845/1] Funding Source: researchfish
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [1105930] Funding Source: National Science Foundation
- European Research Council (ERC) [267864] Funding Source: European Research Council (ERC)
- Grants-in-Aid for Scientific Research [13F03316] Funding Source: KAKEN
- STFC [ST/K000845/1, ST/J001163/1] Funding Source: UKRI
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The solar analogues 16 Cyg A and 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(-1.8)(+1.5) and 23.2(-3.2)(+11.5) d, and the angles of inclination to be 56(-5)(+6 degrees) and 36(-7)(+17)degrees, 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.
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