Size distribution of polycyclic aromatic hydrocarbons in space: an old new light on the 11.2/3.3 μm intensity ratio

Faraday Discuss., 2023, 245,380-390
DOI: 10.1039/D2FD00180B, Paper
Open Access Open Access
Creative Commons Licence  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Alexander K. Lemmens, Cameron J. Mackie, Alessandra Candian, Timothy M. J. Lee, Alexander G. G. M. Tielens, Anouk M. Rijs, Wybren Jan Buma
Calculated infrared absorption intensities of PAHs that underlie the interpretation of infrared emission from the ISM are validated with experiments. An adjusted emission model implies that typical PAH sizes are smaller than previously estimated.
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