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Revealing the Origin of Desert Dwellers via Stellar Obliquities

  • Authors: Tim Hallatt, James E. Owen, Sarah Millholland

Tim Hallatt et al 2026 The Astrophysical Journal Letters 1005 .

  • Provider: AAS Journals

Caption: Figure 9.

Post-Roche lobe overflow evolution of the planet from Figure 8 (note the differing xy axes). Our MESA calculation produces late-time mass loss, which evacuates the remaining ∼1% of hydrogen left after peak Roche lobe overflow, predicting denser desert dwellers than T. Hallatt & S. Millholland (2026a). This late-time behavior reflects the transition from Roche lobe overflow to photoevaporation, aided by the planet's structure becoming radiative.

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