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Rotation Periods, Inclinations, and Obliquities of Cool Stars Hosting Directly Imaged Substellar Companions: Spin–Orbit Misalignments Are Common

  • Authors: Brendan P. Bowler, Quang H. Tran, Zhoujian Zhang, Marvin Morgan, Katelyn B. Ashok, Sarah Blunt, Marta L. Bryan, Analis E. Evans, Kyle Franson, Daniel Huber, Vighnesh Nagpal, Ya-Lin Wu, Yifan Zhou

Brendan P. Bowler et al 2023 The Astronomical Journal 165 .

  • Provider: AAS Journals

Caption: Figure 6.

Posterior distributions for line-of-sight stellar inclinations determined in this study. Blue shaded regions show 1σ and 2σ credible intervals. Stars viewed equator-on have inclinations of 90°, while pole-on orientations have inclinations of 0°. Note that the direction of the angular momentum vector in the sky plane is usually unknown, as is its orientation toward or away from the observer. For comparison, an isotropic prior distribution is shown in Figure 8.

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