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Identifying Close-in Jupiters that Arrived via Disk Migration: Evidence of Primordial Alignment, Preference of Nearby Companions and Hint of Runaway Migration

  • Authors: Yugo Kawai, Akihiko Fukui, Noriharu Watanabe, Sho Fukazawa, Norio Narita

Yugo Kawai et al 2025 The Astronomical Journal 170 .

  • Provider: AAS Journals

Caption: Figure 4.

The result of the Monte Carlo experiment described in Section 4.2. While the sample of seven hot Jupiters with nearby companions contains an average of 3.83 dynamically young systems, a sample of seven randomly drawn hot Jupiters on circular orbits typically contains none. The resulting p-value is 0.001, corresponding to 3.1σ.

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