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Characterizing a World Within the Hot-Neptune Desert: Transit Observations of LTT 9779 b with the Hubble Space Telescope/WFC3

  • Authors: Billy Edwards, Quentin Changeat, Angelos Tsiaras, Andrew Allan, Patrick Behr, Simone R. Hagey, Michael D. Himes, Sushuang Ma, Keivan G. Stassun, Luis Thomas, Alexandra Thompson, Aaron Boley, Luke Booth, Jeroen Bouwman, Kevin France, Nataliea Lowson, Annabella Meech, Caprice L. Phillips, Aline A. Vidotto, Kai Hou Yip, Michelle Bieger, Amélie Gressier, Estelle Janin, Ing-Guey Jiang, Pietro Leonardi, Subhajit Sarkar, Nour Skaf, Jake Taylor, Ming Yang, Derek Ward-Thompson

Billy Edwards et al 2023 The Astronomical Journal 166 .

  • Provider: AAS Journals

Caption: Figure 12.

Changes to the retrieved abundances of H2O, CO2, and FeH when one of the other molecules is removed from the retrieval. In all three cases, the model without the molecule is not preferred to the full setup. Comparing the Bayesian evidence suggests the presence of H2O is preferred by 3.11σ while there is a 2.35σ preference for the inclusion of CO2 and a 2.12σ preference for FeH. All these retrievals were conducted with an isothermal temperature–pressure profile.

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