HOT STARS WITH HOT JUPITERS HAVE HIGH OBLIQUITIES

@article{Winn2010HOTSW,
  title={HOT STARS WITH HOT JUPITERS HAVE HIGH OBLIQUITIES},
  author={Joshua N. Winn and Daniel C. Fabrycky and Simon H. Albrecht and John Asher Johnson},
  journal={The Astrophysical Journal Letters},
  year={2010},
  volume={718},
  pages={L145 - L149}
}
We show that stars with transiting planets for which the stellar obliquity is large are preferentially hot (Teff > 6250 K). This could explain why small obliquities were observed in the earliest measurements, which focused on relatively cool stars drawn from Doppler surveys, as opposed to hotter stars that emerged more recently from transit surveys. The observed trend could be due to differences in planet formation and migration around stars of varying mass. Alternatively, we speculate that hot… 
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