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Observational and Dynamical Constraints on an Unseen Outer Perturber in the GJ 436 Hot Neptune System

  • Authors: Haedam Im, 해담 임, Tiger Lu, 均 陆, Malena Rice, Quang H. Tran, Gongjie Li, Smadar Naoz

Haedam Im et al 2026 The Astrophysical Journal 1003 .

  • Provider: AAS Journals

Caption: Figure 9.

Distribution of final semimajor axes ab,final for plausible simulations initialized with Imut,i = 80° and ab,i = 1 au across four planetary radius factors: 1 Rp (black), 1.3 Rp (red), 1.5 Rp (orange), and 2 Rp (blue). The dashed vertical line marks the present-day observed semimajor axis of GJ 436 b (0.0291 au).

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