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Constraining Atmospheric Composition from the Outflow: Helium Observations Reveal the Fundamental Properties of Two Planets Straddling the Radius Gap

  • Authors: Michael Zhang, Jacob L. Bean, David Wilson, Girish Duvvuri, Christian Schneider, Heather A. Knutson, Fei Dai, Karen A. Collins, Cristilyn N. Watkins, Richard P. Schwarz, Khalid Barkaoui, Avi Shporer, Keith Horne, Ramotholo Sefako, Felipe Murgas, Enric Palle

Michael Zhang et al 2025 The Astronomical Journal 169 .

  • Provider: AAS Journals

Caption: Figure 2.

Two different XUV spectrum reconstructions: one by A. Youngblood’s group following the methodology in G. M. Duvvuri et al. (2021, 2023) and one by J. Sanz-Forcada following the methodology in J. Sanz-Forcada et al. (2025).

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