Collisional excitation of cyclopentadiene by helium. A complete set of rate coefficients and astrophysical applications

Complex organic molecules, including large cyclic species, are prevalent in interstellar space and play a key role in various astrochemical processes.

Complex organic molecules, including large cyclic species, are prevalent in interstellar space and play a key role in various astrochemical processes. Cyclopentadiene (c-C5H6) is a five-membered cyclic hydrocarbon recently detected in TMC-1 and some other interstellar molecular…