3 papers
astro-ph.GA2025
The essential elements of dust evolution: a-C(:H) nanoparticle sub-structures and photo-fragmentation
A. P. Jones, N. Ysard
Hydrogenated amorphous carbon materials, a-C(:H), are heterogeneous structures consisting of carbon atoms in different hybridisation states and bonding configurations and are thoug…
astro-ph.GA2025
JWST observations of photodissociation regions III. Dust modelling at the illuminated edge of the Horsehead PDR
M. Elyajouri, A. Abergel, N. Ysard +19
Carbonaceous nano-grains are a significant component of interstellar dust and dominate the mid-infrared emission of photodissociation regions (PDRs). We study the evolution of nano…
astro-ph.GA2025
From small dust to micron-sized aggregates: the influence of structure and composition on the dust optical properties
M. -A. Carpine, N. Ysard, A. Maury +1
Models of astrophysical dust are key to understand several physical processes, from the role of dust grains as cooling agents in the ISM to their evolution in dense circumstellar d…