MOL-D: A Collisional Database and Web Service within the Virtual Atomic and Molecular Data Center

TL;DR

MOL-D is a specialized database and web service providing cross-sections and rate coefficients for collisional processes in molecular ions, supporting astrophysical and plasma research.

Contribution

It introduces a new database and web service with detailed collisional data for specific molecular ions, enhancing data accessibility for scientific modeling.

Findings

Contains data for H2+ and He2+ molecular ions

Provides photo-dissociation cross-sections and rate coefficients

Supports astrophysical and plasma modeling

Abstract

MOL-D database is a collection of cross-sections and rate coefficients for specific collisional processes and a web service within the Serbian Virtual Observatory (SerVO) and the Virtual Atomic and Molecular Data Center (VAMDC). This database contains photo-dissociation cross-sections for the individual ro-vibrational states of the diatomic molecular ions and rate coefficients for the atom-Rydberg atom chemi-ionization and inverse electron-ion-atom chemi-recombination processes. At the moment it contains data for photodissociation cross-sections of hydrogen H2+ and helium He2+ molecular ions and the corresponding averaged thermal photodissociation cross-sections. The ro-vibrational energy states and the corresponding dipole matrix elements are provided as well. Hydrogen and helium molecular ion data are important for calculation of solar and stellar atmosphere models and for radiative transport, as well as for kinetics of other astrophysical and laboratory plasma (i.e. early Universe).