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Coupled Photochemical–Climate Modeling of Plausible Tenuous Outgassed Atmospheres on the TRAPPIST-1 Planets

  • Authors: Megan T. Gialluca, Victoria S. Meadows, Andrew P. Lincowski, Trent B. Thomas, P. C. Hinton, David Brain, David Crisp

Megan T. Gialluca et al 2026 The Planetary Science Journal 7 .

  • Provider: AAS Journals

Caption: Figure 3.

The VMR profiles of SO2 and daughter species for the same atmospheres given as examples in Figure 2 for T-1 c and e. The format is the same as for Figure 2. For T-1 c and e, we show one example profile for every stable composition for each of the two planets. Only the mixed CO–CO2 and O2–H2O–CO2 compositions had nonnegligible abundances of SO3, SO, and H2SO4, which is why no mixing ratio profiles are seen for these species in the other compositional cases.

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