Interstellar polycyclic aromatic hydrocarbon molecules

AGGM Tielens - Annu. Rev. Astron. Astrophys., 2008 - annualreviews.org
Large polycyclic aromatic hydrocarbon (PAH) molecules carry the infrared (IR) emission
features that dominate the spectra of most galactic and extragalactic sources. This review …

Infrared emission from interstellar dust. IV. The silicate-graphite-PAH model in the post-Spitzer era

BT Draine, A Li - The Astrophysical Journal, 2007 - iopscience.iop.org
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 …

C60 in reflection nebulae

K Sellgren, MW Werner, JG Ingalls… - The Astrophysical …, 2010 - iopscience.iop.org
The fullerene C 60 has four infrared-active vibrational transitions at 7.0, 8.5, 17.4, and 18.9
μm. We have previously observed emission features at 17.4 and 18.9 μm in the reflection …

The NASA Ames PAH IR spectroscopic database: The laboratory spectra

AL Mattioda, DM Hudgins, C Boersma… - The Astrophysical …, 2020 - iopscience.iop.org
The astronomical emission features, formerly known as the unidentified infrared bands, are
now commonly ascribed to polycyclic aromatic hydrocarbons (PAHs). The laboratory …

Evolution of polycyclic aromatic hydrocarbons in photodissociation regions-Hydrogenation and charge states

J Montillaud, C Joblin, D Toublanc - Astronomy & Astrophysics, 2013 - aanda.org
Context. Various studies have emphasised variations in the charge state and composition of
the interstellar polycyclic aromatic hydrocarbon (PAH) population in photodissociation …

The infrared spectroscopy of compact polycyclic aromatic hydrocarbons containing up to 384 carbons

A Ricca, CW Bauschlicher, C Boersma… - The Astrophysical …, 2012 - iopscience.iop.org
The mid-and the far-infrared spectra of polycyclic aromatic hydrocarbons (PAHs) have been
computed using density functional theory. This study has focused on PAHs in the highly …

The NASA Ames polycyclic aromatic hydrocarbon infrared spectroscopic database: the computed spectra

CW Bauschlicher, C Boersma, A Ricca… - The Astrophysical …, 2010 - iopscience.iop.org
The astronomical emission features, formerly known as the unidentified infrared bands, are
now commonly ascribed to polycyclic aromatic hydrocarbons (PAHs). The laboratory …

The space infrared telescope for cosmology and astrophysics: SPICA A joint mission between JAXA and ESA

B Swinyard, T Nakagawa - Experimental Astronomy, 2009 - Springer
Abstract The Space Infrared telescope for Cosmology and Astrophysics (SPICA) is planned
to be the next space astronomy mission observing in the infrared. The mission is planned to …

Time-dependent density functional study of the electronic spectra of oligoacenes in the charge states− 1, 0,+ 1, and+ 2

G Malloci, G Mulas, G Cappellini, C Joblin - Chemical Physics, 2007 - Elsevier
We present a systematic theoretical study of the five smallest oligoacenes (naphthalene,
anthracene, tetracene, pentacene, and hexacene) in their anionic, neutral, cationic, and …

Variations on a theme–the evolution of hydrocarbon solids-II. Optical property modelling–the optEC (s) model

AP Jones - Astronomy & Astrophysics, 2012 - aanda.org
Context. The properties of hydrogenated amorphous carbon (aC: H) dust are known to
evolve in response to the local conditions. Aims. We present an adaptable model for the …