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dc.contributor.authorKaralidi, T.
dc.contributor.authorMarley, M.
dc.contributor.authorFortney, J.J.
dc.contributor.authorMorley, C.
dc.contributor.authorSaumon, D.
dc.contributor.authorLupu, R.
dc.contributor.authorVisscher, C.
dc.contributor.authorFreedman, R.
dc.date.accessioned2022-03-17T01:56:31Z
dc.date.available2022-03-17T01:56:31Z
dc.date.issued2021
dc.identifier.citationKaralidi, T., Marley, M., Fortney, J. J., Morley, C., Saumon, D., Lupu, R., Visscher, C., & Freedman, R. (2021). The Sonora Substellar Atmosphere Models. II. Cholla: A Grid of Cloud-free, Solar Metallicity Models in Chemical Disequilibrium for the JWST Era. Astrophysical Journal.
dc.identifier.issn0004-637X
dc.identifier.doi10.3847/1538-4357/ac3140
dc.identifier.urihttp://hdl.handle.net/10150/663536
dc.description.abstractExoplanet and brown dwarf atmospheres commonly show signs of disequilibrium chemistry. In the James Webb Space Telescope (JWST) era, high-resolution spectra of directly imaged exoplanets will allow the characterization of their atmospheres in more detail, and allow systematic tests for the presence of chemical species that deviate from thermochemical equilibrium in these atmospheres. Constraining the presence of disequilibrium chemistry in these atmospheres as a function of parameters such as their effective temperature and surface gravity will allow us to place better constraints on the physics governing these atmospheres. This paper is part of a series of works presenting the Sonora grid of atmosphere models. In this paper, we present a grid of cloud-free, solar metallicity atmospheres for brown dwarfs and wide-separation giant planets with key molecular species such as CH4, H2O, CO, and NH3 in disequilibrium. Our grid covers atmospheres with T eff ∈ [500 K, 1300 K], log g ∈ [3.0, 5.5] (cgs) and an eddy diffusion parameter of and 7 (cgs). We study the effect of different parameters within the grid on the temperature and composition profiles of our atmospheres. We discuss their effect on the near-infrared colors of our model atmospheres and the detectability of CH4, H2O, CO, and NH3 using the JWST. We compare our models against existing MKO and Spitzer observations of brown dwarfs and verify the importance of disequilibrium chemistry for T dwarf atmospheres. Finally, we discuss how our models can help constrain the vertical structure and chemical composition of these atmospheres. © 2021. The Author(s). Published by the American Astronomical Society.
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.rightsCopyright © 2021. The Author(s). Published by the American Astronomical Society.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleThe Sonora Substellar Atmosphere Models. II. Cholla: A Grid of Cloud-free, Solar Metallicity Models in Chemical Disequilibrium for the JWST Era
dc.typeArticle
dc.typetext
dc.contributor.departmentLunar & Planetary Laboratory, University of Arizona
dc.identifier.journalAstrophysical Journal
dc.description.noteImmediate access
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal published version
dc.source.journaltitleAstrophysical Journal
refterms.dateFOA2022-03-17T01:56:31Z


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