SIMBAD references

2011MNRAS.413L..71W - Mon. Not. R. Astron. Soc., 413, L71-L75 (2011/May-1)

On the alignment of debris discs and their host stars' rotation axis – implications for spin-orbit misalignment in exoplanetary systems.

WATSON C.A., LITTLEFAIR S.P., DIAMOND C., COLLIER CAMERON A., FITZSIMMONS A., SIMPSON E., MOULDS V. and POLLACCO D.

Abstract (from CDS):

It has been widely thought that measuring the misalignment angle between the orbital plane of a transiting exoplanet and the spin of its host star was a good discriminator between different migration processes for hot-Jupiters. Specifically, well-aligned hot-Jupiter systems (as measured by the Rossiter-McLaughlin effect) were thought to have formed via migration through interaction with a viscous disc, while misaligned systems were thought to have undergone a more violent dynamical history. These conclusions were based on the assumption that the planet-forming disc was well-aligned with the host star. Recent work by a number of authors has challenged this assumption by proposing mechanisms that act to drive the star-disc interaction out of alignment during the pre-main-sequence phase. We have estimated the stellar rotation axis of a sample of stars which host spatially resolved debris discs. Comparison of our derived stellar rotation axis inclination angles with the geometrically measured debris-disc inclinations shows no evidence for a misalignment between the two.

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): stars: activity - planetary systems - stars: rotation

Simbad objects: 11

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2019.10.14-21:15:43

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