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POSEIDON I: The Dynamical Origins of Transiting Neptunes

  • Authors: Juan I. Espinoza-Retamal, Joshua N. Winn, Rafael Brahm, Cristobal Petrovich, Guđmundur Stefánsson, Hareesh Bhaskar, Elise Koo, Andrés Jordán, Marcelo Tala Pinto, Melissa J. Hobson, Hugo Veldhuis, Felipe I. Rojas, Johanna K. Teske, R. Paul Butler, Jeffrey D. Crane, Stephen Shectman, Shreyas Vissapragada, Gavin Boyle, Rodrigo Leiva, Vincent Suc

Juan I. Espinoza-Retamal et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 6.

Inferred stellar obliquity distributions for the samples of Jupiter and Neptune hosts. This inference was based on sky-projected obliquity measurements, following the methodology of J. Dong & D. Foreman-Mackey (2023), without including information about the stellar inclination. The solid line shows the median distribution, and random samples from the posteriors are shown in the background. (a) Distribution derived by J. I. Espinoza-Retamal et al. (2024) for a sample of 27 Neptune host stars (green). (b) Distribution derived in this work for the expanded sample of 45 Neptune host stars (green). (c) Distribution derived in this work for the sample of 235 Jupiter host stars (black). (d) Distribution derived in this work for the sample of 150 Jupiter host stars with Teff ≤ 6250 K (blue). (e) Distribution derived in this work for the sample of 85 Jupiter host stars with Teff > 6250 K (blue).

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