Over the past 25 years, astronomers have discovered a large number of gas-phase
molecules in space, ranging in size up to more than 10 atoms. The molecules, which are …

The physical and chemical processes leading to the formation of molecules in the interstellar
medium (ISM) sthe vast voids between the starssfascinated scientists since the first detection …

MORE than a hundred well-defined absorption bands, arising from diffuse gas in the
interstellar medium, have been observed in the visible and near-infrared spectra of stars 1 …

Calculations are carried out using density functional theory (DFT) to determine the harmonic
frequencies and intensities of the neutrals and cations of 13 polycyclic aromatic …

A survey of diffuse interstellar bands (3800-8680 A) ADS Classic is now deprecated. It will be
completely retired in October 2019. This page will automatically redirect to the new ADS …

Photodestruction of PAHs in the interstellar medium. I. Photodissociation rates ADS Classic is
now deprecated. It will be completely retired in October 2019. This page will automatically …

The potential link between neutral and/or ionized polycyclic aromatic hydrocarbons (PAHs)
and the diffuse interstellar band (DIB) carriers is examined. Based on the study of the …

Diffuse interstellar bands (DIBs) are mysterious absorption lines in the optical spectra of
stars, and have been known for 75 years 1. Although it is widely believed 2, 3, 4 that they …

We discuss the proposal relating the origin of some of the diffuse interstellar bands (DIBs) to
neutral and ionized polycyclic aromatic hydrocarbons (PAHs) present in interstellar clouds …

Time-dependent density functional theory (TDDFT) and its modification, the Tamm–Dancoff
approximation to TDDFT, are employed to calculate the electronic excitation energies and …