6 papers
Isomer-specific excitation of formic acid in collisions with helium atoms
Karina Sogomonyan, Anzhela Veselinova-Marinova, François Lique +1
An accurate estimation of the molecular abundances of isomers in the interstellar medium (ISM) is necessary to unravel the underlying chemistry and physics. After the recent detect…
Collisional energy transfer in ethanimine + He system
Vivek Vijay, Francesca Tonolo, Ernesto Quintas-Sánchez +5
The ethanimine molecule, CH3CHNH, is one of the prebiotic molecules detected by astronomers in chemically-rich molecular clouds in the Galactic Center. The observations indicate a…
Collisional excitation of HCO by He: Experimental validation of state-of-the-art scattering calculations
Chinmai Sai Jureddy, Sandor Demes, Francesca Tonolo +2
Context. Non-local thermodynamic equilibrium conditions in the interstellar medium require collisional rate coefficients to model astronomical observations; these are usually deter…
Carbon chain diversity in L1544 and IRAS 16293-2422: an astrochemical pathfinder study for the SKAO
Lisa Giani, Eleonora Bianchi, Anthony Remijan +12
Astrochemical observations have revealed a surprisingly high level of chemical complexity, including long carbon chains, in the earliest stages of Sun-like star formation. The orig…
Collisional excitation of HCN by CO to refine the modeling of cometary comae
Francesca Tonolo, Ernesto Quintas-Sánchez, Adrian Batista-Planas +2
We present the first dataset of collisional (de)-excitation rate coefficients of HCN induced by CO, one of the main perturbing gases in cometary atmospheres. The dataset spans the…
Rotational excitation cross sections for chloronium based on a new 5D interaction potential with molecular hydrogen
Sándor Demes, Dariusz KÄdziera, Alexandre Faure +1
Chloronium (HCl) is an important intermediate of Cl-chemistry in space. The accurate knowledge of its collisional properties allows a better interpretation of the correspon…