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 …

Large polycyclic aromatic hydrocarbon (PAH) molecules carry the infrared (IR) emission
features that dominate the spectra of most galactic and extragalactic sources. This review …

IR emission spectra are calculated for dust heated by starlight, for mixtures of amorphous
silicate and graphitic grains, including varying amounts of PAH particles. The models are …

Molecular absorption and emission bands dominate the visible, infrared, and submillimeter
spectra of most objects with associated gas. These observations reveal a surprisingly rich …

During the commissioning of JWST, the medium-resolution spectrometer (MRS) on the mid-
infrared instrument (MIRI) observed the planetary nebula SMP LMC 058 in the Large …

We present maps of the 3.3 μm polycyclic aromatic hydrocarbon (PAH) emission feature in
NGC 628, NGC 1365, and NGC 7496 as observed with the Near-Infrared Camera imager on …

Infrared (IR) emission features at 3.3, 6.2, 7.7, 8.6, and 11.3 μm are generally attributed to IR
fluorescence from (mainly) far-ultraviolet (FUV) pumped large polycyclic aromatic …

The astronomical emission features, formerly known as the unidentified infrared bands, are
now commonly ascribed to polycyclic aromatic hydrocarbons (PAHs). The laboratory …

We present the results of a systematic study of mid-IR spectra of Galactic regions,
Magellanic H ii regions, and galaxies of various types (dwarf, spiral, starburst), observed by …

The aromatic features in M101 were studied spectroscopically and photometrically using
observations from all three instruments on the Spitzer Space Telescope. The global SED of …