article · Astronomy and Astrophysics
The BASECOL database compiles inelastic rate coefficients for study of the interstellar medium, circumstellar environments, and cometary atmospheres. The BASECOL2023 edition presents an updated collection of these scientific datasets, organised with standardised metadata to facilitate data discovery and sharing. Unlike earlier versions that depended on literature searches, this release is populated directly with published findings submitted by the data producers. Organised species by species, the database aligns with Virtual Atomic and Molecular Data Centre (VAMDC) standards and integrates with the wider VAMDC e-infrastructure. Consequently, users can extract collisional data using standard VAMDC tools and merge them with spectroscopic data from complementary databases, including the Cologne Database for Molecular Spectroscopy, the Jet Propulsion Laboratory database, and HITRAN.
Astrophysical and atmospheric research requires reliable molecular collision data to interpret observations accurately. By standardising metadata and collecting data directly from the scientists who produce it, BASECOL2023 ensures researchers can readily access, compare, and integrate collisional rates with established global spectroscopic resources. This infrastructure streamlines scientific workflows across space and atmospheric sciences.
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Context . The global context of making numerous data produced by researchers available requires collecting and organising the data, assigning meaningful metadata, and presenting the data in a meaningful and homogeneous way. The BASECOL database, which collects inelastic rate coefficients for application to the interstellar medium and to circumstellar and cometary atmospheres, meets those requirements. Aims . We aim to present the scientific content of the BASECOL2023 edition. Methods . While the previous versions relied on finding rate coefficients in the literature, the current version is populated with published results sent by the producers of data. The paper presents the database, the type of data that can be found, the type of metadata that are used, and the Virtual Atomic and Molecular Data Centre (VAMDC) standards that are used for the metadata. Finally, we present the different datasets species by species. Results . As the BASECOL database, interconnected with the VAMDC e-infrastructure, uses the VAMDC standards, the collisional data can be extracted with tools using VAMDC standards and can be associated with spectroscopic data extracted from other VAMDC connected databases such as the Cologne database for molecular spectroscopy (CDMS), the jet propulsion laboratory molecular spectroscopy database (JPL), and the high-resolution transmission molecular absorption database (HITRAN).
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DOI: 10.1051/0004-6361/202348233
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