Hot Stars With Kepler Planets Have High Obliquities.

@article{Louden2020HotSW,
  title={Hot Stars With Kepler Planets Have High Obliquities.},
  author={Emma M. Louden and J. Winn and E. Petigura and H. Isaacson and A. Howard and K. Masuda and S. Albrecht and M. Kosiarek},
  journal={arXiv: Earth and Planetary Astrophysics},
  year={2020}
}
It has been known for a decade that hot stars with hot Jupiters tend to have high obliquities. Less is known about the degree of spin-orbit alignment for hot stars with other kinds of planets. Here, we re-assess the obliquities of hot Kepler stars with transiting planets smaller than Neptune, based on spectroscopic measurements of their projected rotation velocities (vsini). The basis of the method is that a lower obliquity -- all other things being equal -- causes sini to be closer to unity… Expand

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