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The Limits of Tidal Circularization and Atmospheric Escape for Mini-Neptunes and Super-Earths: The Case of TOI-2257 b

  • Authors: Michael Kent A. Olohoy, Yukari Aubrey D. Gelani, Rory Barnes

Michael Kent A. Olohoy et al 2026 The Planetary Science Journal 7 .

  • Provider: AAS Journals

Caption: Figure 4.

Change in envelope mass ΔMenv ﹩\left(\,{M}_{\oplus }\right)﹩ of TOI-2257 b (mini-Neptune case) as a function of initial Menv and ϵXUV over the range [0.05, 1]. Contours represent ΔMenv after evolution under photoevaporative mass loss. Higher ϵXUV leads to greater atmospheric erosion, especially when the planet has a low initial Menv.

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