This article gives an overview of the constitution, physical conditions, and observables of
dust in the interstellar medium of nearby galaxies. We first review the macroscopic, spatial …

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 …

Here we introduce the interstellar dust modelling framework THEMIS (The Heterogeneous
dust Evolution Model for Interstellar Solids), which takes a global view of dust and its …

Context. The evolution of amorphous hydrocarbon materials, aC (: H), principally resulting
from ultraviolet (UV) photon absorption-induced processing, are likely at the heart of the …

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

Polycyclic aromatic hydrocarbons (PAHs) play a critical role in the reprocessing of stellar
radiation and balancing the heating and cooling processes in the interstellar medium but …

This Perspective presents recent advances in our knowledge of the fundamental elementary
mechanisms involved in the low-and high-temperature molecular mass growth processes to …

The Planck and Herschel missions are currently measuring the far-infrared to millimeter
emission of dust, which combined with existing IR data, will for the first time provide the full …

Buckminsterfullerene (C60) was recently confirmed as the largest molecule identified in
space. However, it remains unclear how and where this molecule is formed. It is generally …

Context. This study deals with infrared bubbles, the H ii regions they enclose, and triggered
massive-star formation on their borders. Aims. We attempt to determine the nature of the …