HELIOS-K calculates opacity functions for planetary atmopheres by using opacity line lists from different databases. Before the opacity functions can be calculated, the line lists need to be downloaded and preprocessed into binary files that can be read from HELIOS-K.
HELIOS-K provides tools to automatically download and preprocess files from the ExoMol, HITRAN, HITEMP, NIST and Kurucz databases.
HELIOS-K is running on GPUs and require a Nvidia GPU with compute capability of 3.0 or higher.
Developed by Simon Grimm & Kevin Heng.
University of Bern.

Running HELIOS-K

Output Files

Atomic Opacities plots


If you make use of HELIOS-K in your work, please cite Grimm & Heng (2015):

       author = {{Grimm}, Simon L. and {Heng}, Kevin},
        title = "{HELIOS-K: An Ultrafast, Open-source Opacity Calculator for Radiative Transfer}",
      journal = {\apj},
     keywords = {methods: numerical, planets and satellites: atmospheres, radiative transfer, Astrophysics - Earth and Planetary Astrophysics, Physics - Atmospheric and Oceanic Physics},
         year = "2015",
        month = "Aug",
       volume = {808},
       number = {2},
          eid = {182},
        pages = {182},
          doi = {10.1088/0004-637X/808/2/182},
archivePrefix = {arXiv},
       eprint = {1503.03806},
 primaryClass = {astro-ph.EP},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2015ApJ...808..182G},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}