Аннотация:The reactive phenyl radical, electronically excited benzene monomer and dimer, their cations and low-atomic neutral hydrocarbons, which are all needed for the large polycyclic aromatic hydrocarbons to emerge under very low temperature and pressure in the interstellar medium (ISM), may be born in-situ via the photodissociation and/or the photoionization of a monomer and a dimer of a benzene molecule photo-desorbed from cosmic ices as well as because of the subsequent dissociative recombination of the arisen benzene cations in a gas phase of ISM.
