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The Goldilocks Problem for Detecting Water in Terrestrial Planets: Constraining Water Abundances in the Mid-infrared with LIFE

  • Authors: S. Rugheimer, E. Alei, B.S. Konrad, B. Taysum, J. L. Grenfell, T. Lichtenberg, D. Kitzmann, F. van der Tak, S.P. Quanz

S. Rugheimer et al 2026 The Astrophysical Journal 1003 .

  • Provider: AAS Journals

Caption: Figure 2.

Planet distance (astronomical units) versus water surface mixing ratio (bar) needed to maintain an average surface temperature of 290 K. While the surface mixing ratio of water is fixed, the profile higher up in the atmosphere can either be constant with height (diamonds), Earth-like (crosses), or based on diffusion and photochemistry (circles).

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