Maragkoudakis, A., Boersma, C., Temi, P., Bregman, J.D., Allamandola, A.L., "Lin
king Characteristics of the Polycyclic Aromatic Hydrocarbon Population with Gala
xy Properties: A Quantitative Approach Using the NASA Ames PAH IR Spectroscopic 
Database", 2022, Astrophys. J., 931, 38 doi: https://doi.org/10.3847/1538-4357/a
c666f

3-20 micron PAH emission spectral templates generated from PAHdb v3.20 modeling 
of galaxies in different radiation fields. 

The templates are parametrized based on: (i) average photon energy, (ii) average
ionization fraction, and (iii) average number of carbon atoms (Nc). The naming 
convention is of the format: PAHdb_{x}eV_ion_frac_{x.xx}_Nc_{x.xx}.ipac, with {x
}eV, ion_frac_{x.xx}, and Nc_{x.xx} corresponding to the average photon energy, 
average ionization fraction, and average number of carbon atoms respectively.