Target

The target of version 1.5 is the radiative transfer. This includes a more sophisticated radiative transfer for pure absorption (i.e. the intensity-based scheme, petitRadtrans like one), with scattering, reflection lights (flux-adding scheme based on Robinson and Crisp (2018), LART), more test and improvements of transmission (incl. bug fix), and so on.

Feature List

Radiative Transfer

Important: the default RT scheme has been the intensity-based scheme w/ 8 streams (ibased), in ArtEmisPure for instance, since version 1.5 (more accurate and faster than the flux based, fbased, see #475, #457 ). This may change the result slightly because of the difference of the RT scheme.

• 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 improvements (Simpson) and more tests #421 #424 #463 #464

Scattering

• Rayleigh scattering #115 #430 #434
• Cloud (Mie) scattering using Ackerman and Marley cloud model #477

Other Improvements

• OLA-based convolution of the response (spin and IP) #417
• telluric line fitting #450
• OpaCont includes H-, Rayleigh, Mie, and CIA #434 #480

Big Fixes

• bugfix for non-constant gravity #447
• enables to compute gradients for transmission #463 #464
• enables OpaDirect for VALD #404
• optelower for HITEMP #454
• slight change (uses nansum) in the f-based transfer #475
• 32 bit issue for mmw #473

Minor Issues

• valid auto T-range became wider than the previous version #345 #456 #466
• allows 32bit for MultiMol #461

See here for more details.