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Astrophysics Source Code Library

Making codes discoverable since 1999

Searching for codes credited to 'Kawashima, Yui'

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Found 1 code.

[ascl:2206.003] ExoJAX: Spectrum modeling of exoplanets and brown dwarfs
Kawahara, Hajime; Kawashima, Yui; Masuda, Kento; Crossfield, Ian; van den Bekerom, Dirk; Kitzmann, Daniel; Morris, Brett; Pannier, Erwan; Nugroho, Stevanus; Ishikawa,Tako
ExoJAX provides auto-differentiable line-by-line spectral modeling of exoplanets/brown dwarfs/M dwarfs using JAX (ascl:2111.002). In a nutshell, ExoJAX allows the user to do a HMC-NUTS fitting using the latest molecular/atomic data in ExoMol, HITRAN/HITEMP, and VALD3. The code enables a fully Bayesian inference of the high-dispersion data to fit the line-by-line spectral computation to the observed spectrum, from end-to-end (i.e. from molecular/atomic databases to real spectra), by combining it with the Hamiltonian Monte Carlo in recent probabilistic programming languages such as NumPyro (ascl:2505.005).