An older version of the theoretical database is currently selected, click here
to use the latest
The web-portal implements a powerful search engine that
allows users to find and select data using simplified
queries. For example, the search string "C=24 H>=0"
will return PAH molecules with 24 carbon atoms and any
non-zero amount of hydrogen atoms.
Here you can peruse the entire set of species in PAHdb.
Species that have been selected (by ticking checkboxes)
from the browse or search pages are bundled here.
Here you can download data and software tools for
interacting with the full spectral libraries.
Here you can access online tools for analysizing selected
spectra, including stacking, co-adding, and more.
The results from different tools are collated here.
Here you access the advanced search options.
Here you can select different databases and spectral
libraries at different version.
You are kindly asked to consider the following references for citation when using the database:
C.W. Bauschlicher, Jr., A. Ricca, C. Boersma, L.J. Allamandola, "THE NASA AMES PAH IR SPECTROSCOPIC DATABASE: COMPUTATIONAL VERSION 3.00 WITH UPDATED CONTENT AND THE INTRODUCTION OF MULTIPLE SCALING FACTORS", The Astrophysical Journal Supplement Series, 234, 32, 2018 10.3847/1538-4365/aaa019 —
C. Boersma, C.W. Bauschlicher, Jr., A. Ricca, A.L. Mattioda, J. Cami, E. Peeters, F. Sánchez de Armas, G. Puerta Saborido, D.M. Hudgins, and L.J. Allamandola, "THE NASA AMES PAH IR SPECTROSCOPIC DATABASE VERSION 2.00: UPDATED CONTENT, WEBSITE AND ON/OFFLINE TOOLS", The Astrophysical Journal Supplement Series, 211, 8, 2014 10.1088/0067-0049/211/1/8 —
Mattioda, A. L., Hudgins, D. M., Boersma, C., Ricca, A., Peeters, E., Cami, J., Sánchez de Armas, F., Puerta Saborido, G., Bauschlicher, C. W., J., and Allamandola, L. J. "THE NASA AMES PAH IR SPECTROSCOPIC DATABASE: THE LABORATORY SPECTRA", The Astrophysical Journal Supplement Series, 251, 22, 2020 10.3847/1538-4365/abc2c8 —
700 species present in version
2.00 of the theoretical database (Oct 29, 2013)