ArchNEMESIS is an open-source Python package developed for the analysis of remote sensing spectroscopic observations of planetary atmospheres. It is based on the widely used NEMESIS radiative transfer and retrieval tool, which has been extensively used for the investigation of a wide variety of planetary environments. The main goal of archNEMESIS is to provide the capabilities of its Fortran-based predecessor, keeping or exceeding the efficiency in the calculations, and benefitting from the advantages Python tools provide in terms of usability and portability. The code, stored in a public GitHub repository under a GPL-v3.0 license, is accompanied by detailed documentation available at https://archnemesis.readthedocs.io/.
@article{arxiv.2501.16452,
title = {archNEMESIS: an open-source Python package for analysis of planetary atmospheric spectra},
author = {Juan Alday and Joseph Penn and Patrick G. J. Irwin and Jonathon P. Mason and Jingxuan Yang},
journal= {arXiv preprint arXiv:2501.16452},
year = {2025}
}