A Decade with VAMDC: Results and Ambitions

Abstract

This paper presents an overview of the current status of the Virtual Atomic and Molecular Data Centre (VAMDC) e-infrastructure, including the current status of the VAMDC-connected (or to be connected) databases, updates on the latest technological development within the infrastructure and a presentation of some application tools that make use of the VAMDC e-infrastructure. We analyse the past 10 years of VAMDC development and operation, and assess their impact both on the field of atomic and molecular (A&M) physics itself and on heterogeneous data management in international cooperation. The highly sophisticated VAMDC infrastructure and the related databases developed over this long term make them a perfect resource of sustainable data for future applications in many fields of research. However, we also discuss the current limitations that prevent VAMDC from becoming the main publishing platform and the main source of A&M data for user communities, and present possible solutions under investigation by the consortium. Several user application examples are presented, illustrating the benefits of VAMDC in current research applications, which often need the A&M data from more than one database. Finally, we present our vision for the future of VAMDC.

Line positions and intensities for the ν2/ν4 bands of 5 isotopologues of germane near 11.5 µm

“…An accurate value of the Ge-H bond length has been derived. New calculated quantitative line lists have been derived and added to the GeCaSDa database [34] , available form the VAMDC portal [36][37][38][39] . These data will also be provided to the other public spectroscopic databases [9,40] .…”

Photodestruction of Diatomic Molecular Ions: Laboratory and Astrophysical Application

“…We prepared data in Virtual Observatory (VO) ( ) compatible format [ 36 , 37 , 38 ] which enable further implementation of results in the A & M databases like [ 27 , 39 ] thus providing a single location where users can access atomic and molecular data. Also, in order to prepare the easier use of data in practice, we found and give for the rate coefficients a simple and accurate fitting formula as a second-degree polynomial fit to numerical results.…”

“…Also, the average cross-section and the corresponding spectral absorption rate coefficients for the photodissociation of the mentioned molecular ions are obtained for a wide region of wavelengths and temperatures. The presented results here are ready for further use with a particular emphasis on the applications for astro-plasma research and low-temperature laboratory plasma research [ 10 , 13 , 25 , 26 , 27 ].…”

On the Stark broadening of Ru III spectral lines

“…We investigated also regularities of Stark broadening parameters within Ru III transition arrays and found that differences are within the limits of 15.5%, so that calculated values could be used to estimate the missing ones from the considered transition arrays. The Stark broadening parameters for multiplets of doubly charged ruthenium, obtained in this work, will be implemented in the STARK-B database (Sahal-Bréchot et al, 2015;Sahal-Bréchot et al, 2020) which also can be accessed through the portal (http://portal.vamdc.eu) of the European Virtual Atomic and Molecular Data Center -VAMDC (Dubernet et al, 2010;Rixon et al, 2011;Dubernet et al, 2016;Albert et al, 2020).…”