Sonora Cholla: A Grid of Cloud-free, Solar Metallicity Models in Chemical Disequilibrium for the JWST Era
Creators
- 1. University of Central Florida
- 2. NASA Ames
- 3. University of California Santa Cruz
- 4. University of Texas at Austin
- 5. Los Alamos National Laboratory
- 6. BAER Institute, NASA Ames Research Center
- 7. Dordt University
- 8. SETI Institute, NASA Ames Research Center
Description
Exoplanet and brown dwarf atmospheres commonly show signs of disequilibrium chemistry. In the James Webb Space Telescope 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 constrains in the physics governing these atmospheres.
This database contains 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. The grid covers atmospheres with Teff~[500 K,1300 K], logg~[3.0,5.5] (cgs) and an eddy diffusion parameter of log Kzz=2, 4 and 7 (cgs). A description of the code and a study of the effect of different parameters within the grid on the temperature and composition profiles of our atmospheres is presented in the accompanying paper "The Sonora Substellar Atmosphere Models. II. Cholla: A Grid of Cloud-free, Solar Metallicity Models in Chemical Disequilibrium for the JWST Era" (accepted to ApJ, Oct. 2021)
Files
Files
(444.6 MB)
Name | Size | Download all |
---|---|---|
md5:78c66a3599366115a83a993de02c613d
|
1.3 MB | Download |
md5:84013e450b762153cc5724521a2eb2ac
|
443.3 MB | Download |