We present a new model of interstellar dust in which large grains are a single composite
material," astrodust," and nanoparticle-sized grains come in distinct varieties including …

We present a synthesis of the astronomical observations constraining the wavelength-
dependent extinction, emission, and polarization from interstellar dust from UV to microwave …

By 2050, many, but not nearly all, unattributed astronomical spectral features will be
conclusively linked to molecular carriers (as opposed to nearly none today in the visible and …

Conspectus Buckminsterfullerene, C60, was discovered through a prominent mass peak
containing 60 atoms produced from laser vaporization of graphite, driven by Kroto's interest …

Evolved stars are foundries of chemical complexity, gas and dust that provide the building
blocks of planets and life, and dust nucleation first occurs in their photosphere. The …

ABSTRACT Fullerenes, including C60, C70, and C60+, are widespread in space through
their characteristic infrared vibrational features (C60+ also reveals its presence in the …

In 2019 it was exactly 100 years ago that the first two DIBs, diffuse interstellar bands, were
discovered by Mary Lea Heger. Today some 500+ DIBs are known. In numerous …

Gas phase electronic spectra of pure carbon cations generated by laser vaporization of
graphite in a supersonic jet and cooled to below 10 K and tagged with helium atoms in a …

Aims. A high spectral resolution investigation of diffuse interstellar bands (DIBs) in the near-
infrared (YJ band) is conducted to test new methods, to confirm and improve existing …

Efforts over 40 yr still leave the source of astronomical infrared emission bands largely
unidentified. Here, we report the first laboratory infrared (6–25 μm) spectra of gas-phase …