History

Version 1.6

The target for version 1.6 is to introduce features that facilitate the application to more practical data. Also, v 1.6 will be the fixed version of ExoJAX2 prior to the paper II submission. It is planned to be released as a pre-release of ExoJAX (ver 2).

  • practical use of a cloud model. See documents/tutorials/jupiters

  • comprehensive review

  • eq methods (and neq ) in opa and mdb to enable to use == (and !=) operators. #509

  • compatible to radis 0.15.2, in particular, “vaex as an option” strategy #500 #506

  • as a result, ExoJAX supports python 3.9 3.10, 3.11, 3.12,

  • new art, ArtAbsPure, computes a pure absorption spectrum w/ and w/o a single reflection at Psurf.

Comparison

  • Comparison with a tabulated cross section #491

  • with pRT #427

Bug Fixes

  • side effect on a multiple call of opa #510

  • Stark broadening #489

  • solar abundance definition (utils.zsol.nsol) #535

Changes

removed

  • recexomol #501

  • lpf.auto_crosssection #498

  • utils.recexomol #501

  • Sij0 attribute from api.py (MdbExomol, MdbHitemp, MdbHitran) #515

  • atm.mixratio.vmr2mmr, atm.mixratio.mmr2vmr (use atm.atmconvert.vmr_to_mmr, atm.atmconvert.mmr_to_vmr instead)

  • spec.dit.dtauM_vald_old

all methods in dynamics package - getE.getE, rvfunc.rvcoref, rvfunc.rvf,``rvfunc.rvf2``, rvfunc.rv_semi_amplitude, rvfunc.rvf1,

several methods in spec.rtransfer (deprecated since v1.5) - dtauM,``dtauCIA``, dtauHminus, dtauVALD, pressure_layer

renamed

  • line_strength_ref_original was introduced for line strength at T=Tref_original, instead of line_strength_ref #515

  • self.line_strength_ref (which depends on self.Tref) → self.line_strength(Tref) #515

  • instances_from_dataframe → attributes_from_dataframe

changes arguments

  • qr_interp(T) → qr_interp(T,Tref) in MdbExomol #515

  • qr_interp(iso,T) → qr_interp(iso,T,Tref) in MdbHitemp/Hitran #515

  • qr_interp_line(T) → qr_interp_line(T,Tref) in MdbHitemp/Hitran #515

new methods

  • computes X, Y, Z, utils.zsol.mass_fraction_XYZ(number_ratio_elements) #535

Version 1.5

  • Intensity-based radiative transfer for pure absorption #411 #412 #419

  • Toon-type two-stream radiative transfer (with scattering/reflection), flux-adding (and LART) #428 #477

  • Forward modeling of the reflection spectrum, with an example of Jupiter’s reflection spectrum. #477

  • Transmission code improvement (Simpson) and more tests #421 #424 #463 #464

  • Rayleigh scattering #115 #430 #434

  • Cloud (Mie) scattering using Ackerman and Marley cloud model #477

Version 1.4

  • transmission spectra #356

  • operators on spectra class #363

  • multiple molecules handler #388

ExoJAX now recommends using 64-bit as default, but can use 32 bit if you are confident (and for real science use).

Version 1.3

  • more GPU memory saved method in PreMODIT (so called diffmode) #332

  • opacity calculator class opa #346 see this tutorial

  • atmospheric RT class art #346

  • optimal Elower max (reducing device memory use) in PreMODIT #331 #332 see this tutorial

  • optional quantum states #336 #338 see this tutorial

  • faster IP and spin convolutions #350

  • molecular mass mdb.molmass available #328

Version 1.2

  • Moved on a common I/O of molecular/atomic database with radis.api for ExoMol/HITRAN/HITEMP #272

  • Removed old moldb for ExoMol/HITRAN/HITEMP

  • PreMODIT algorithm, applicable to a wide wavenumber range #265 #287 #288 #307

  • Memory saved version of spin rotation and instrumental response #295

Version 1.1

  • VALD3

  • reverse mode available

  • compatibility with JAXopt #212

Version 1.0

  • Auto-differentiable Spectrum Model of exoplanets/brown dwarfs built on JAX using the molecular/atomic database, ExoMol, HITRAN/HITEMP and VALD3.

  • Bayesian inference using HMC-NUTS/NumPyro

  • Two opacity calculators available: Direct computation of the Voigt line profile (lpf) and the modified discrete integral transform (MODIT). The latter is a fast opacity calculator for the number of lines N >~ 1000.

  • Transparent open-source code with documentations, including a peer-reviewed paper, API, user guide, and tutorials using real data

  • HITRAN/CIA and H- as continuous opacity

  • Cloud modeling based on Ackerman and Marley

  • Quick computation of the opacity and emission spectra for observers (autospec)

Before Version 1