Supplementary materials for, 'Sub-Neptunes as Soot Factories: Deep Atmosphere Hydrocarbon Formation and Quenching as the Origin of Sub-Neptune Aerosol Trends'

Supplementary materials for “Sub-Neptunes as Soot Factories: Deep Atmosphere Hydrocarbon Formation and Quenching as the Origin of Sub-Neptune Aerosol Trends (arXiv:2604.11919)”. 

These materials include:

The resulting elemental abundances:

abundance_grids.csv

The full species classification:

species_ring_classification.csv

Chemical network in formats compatible with Cantera v3.1.0 (Goodwin et al. 2024)

soot_network_v1.txt

soot_network_v1.yaml

Reaction Mechanism Generator (v3.3) input file (Gao et al. 2016; Liu et al. 2021b; Johnson et al. 2022)

input.py

SVG files showing the species' molecular structures

PAH_class.svg

NoRing_class.svg

AH_class.svg