SIMBAD references

2014ApJ...796...47M - Astrophys. J., 796, 47 (2014/November-3)

Obliquities of Kepler stars: comparison of single- and multiple-transit systems.


Abstract (from CDS):

The stellar obliquity of a transiting planetary system can be constrained by combining measurements of the star's rotation period, radius, and projected rotational velocity. Here, we present a hierarchical Bayesian technique for recovering the obliquity distribution of a population of transiting planetary systems and apply it to a sample of 70 Kepler objects of interest. With ~95% confidence, we find that the obliquities of stars with only a single detected transiting planet are systematically larger than those with multiple detected transiting planets. This suggests that a substantial fraction of Kepler's single-transiting systems represent dynamically hotter, less orderly systems than the "pancake-flat" multiple-transiting systems.

Abstract Copyright:

Journal keyword(s): methods: statistical - planetary systems - planets and satellites: general

Simbad objects: 76

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