Polycyclic aromatic hydrocarbon (PAH) molecules are abundant and widespread throughout
the Universe, as revealed by their distinctive set of emission bands at 3.3, 6.2, 7.7, 8.6, 11.3 …

Despite the generally hostile nature of the environments involved, chemistry does occur in
space. Molecules are seen in environments that span a wide range of physical and chemical …

Unidentified infrared emission bands are ubiquitous in many astronomical sources. These
bands are widely, if not unanimously, attributed to collective emissions from polycyclic …

Polycyclic aromatic hydrocarbons (PAHs) have long been invoked in the study of interstellar
and protostellar sources, but the unambiguous identification of any individual PAH has …

We have developed an online radiative-transfer suite (https://psg. gsfc. nasa. gov) applicable
to a broad range of planetary objects (eg, planets, moons, comets, asteroids, TNOs, KBOs …

The James Webb Space Telescope (JWST, Gardner et al. 2006) is a 6.5 m space telescope
launched in 2021 December and is developed by the National Aeronautics and Space …

Ratios of polycyclic aromatic hydrocarbon (PAH) vibrational bands are a promising tool for
measuring the properties of the PAH population and their effect on star formation. The …

Using physical models, we study the sensitivity of polycyclic aromatic hydrocarbon (PAH)
emission spectra to the character of the illuminating starlight, to the PAH size distribution …

Polycyclic aromatic hydrocarbons (PAHs) are carbon-based molecules that are ubiquitous in
a variety of astrophysical objects and environments. In this work we use JWST/MIRI MRS …

Anharmonic quantum chemical computations reveal a strong, narrow (width= 0.075 m) band
in the 4.3–4.5 m region of the absorption spectra of the cyano-substituted polycyclic aromatic …