Young massive stars regulate the physical conditions, ionization, and fate of their natal
molecular cloud and surroundings. It is important to find tracers that quantify the stellar …

We present a detailed theoretical study of the rotational excitation of CH+ due to reactive
and non-reactive collisions involving C+ (2 P), H2, CH+, H and free electrons. Specifically …

Context. Molecular clouds are known to be magnetised and to display a turbulent and
complex structure where warm and cold phases are interwoven. The turbulent motions …

Context. The ortho-to-para ratio (OPR) of water in the interstellar medium (ISM) is often
assumed to be related to the formation temperature of water molecules, making it a …

We discuss the detection of 14 rovibrational lines of CH+, obtained toward the planetary
nebula NGC 7027 with the iSHELL spectrograph on NASA's Infrared Telescope Facility …

The faint CO gases in debris disks are easily dissolved into C by UV irradiation, while CO
can be reformed via reactions with hydrogen. The abundance ratio of C/CO could thus be a …

We report absolute integral cross section (ICS) measurements using a dual-source merged-
fast-beams apparatus to study the titular reactions over the relative translational energy …

We carry out quasi-classical trajectory calculations for the C+ CH+→ C+ H reaction on an ad
hoc computed high-level ab initio potential energy surface. Thermal rate coefficients at the …

With the many-body expansion method, an accurate global potential energy surface (PES) is
constructed for Si H 2+(X 2 A 1) by mapping 4762 ab initio energy points calculated on the …

Global diabatic potential energy surfaces (PESs) of CH 2+ are constructed using the neural
network method with a specific function based on 18 213 ab initio points. The multi …