Development of collisional data base for elementary processes of electron scattering by atoms and molecules

Marinković, B P; Vujčić, Veljko; Sushko, Gennady B.; Vudragović, D.; Marinković, Dara B.; Đorđević, Stefan; Ivanović, Stefan; Nešić, Milutin; Jevremović, D.; Solov’yov, Andrey V.; Mason, Nigel J.

doi:10.1016/j.nimb.2014.12.039

Cited by 14 publications

(15 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…BEAMDB contains measured collisional data for electron interactions with atoms and molecules in the form of differential and integrated cross sections as well as energy loss of the spectra (Marinković et al, 2015). Two types of electron collision processes are featured in the collection, elastic electron scattering and electron excitation of atoms and electronic states of molecules.…”

Section: Beamdbmentioning

confidence: 99%

Databases for collisional and radiative processes in small molecules needed for spectroscopy use in astrophysics

Jevremović¹,

Srećković²,

Marinković³

et al. 2020

caosp

View full text Add to dashboard Cite

In this contribution we present a report on two atomic/molecular databases for collisional and radiative processes, BEAMDB and MolD, which are web services at the Serbian Virtual Observatory (SerVO) and nodes within the Virtual Atomic and Molecular Data Center (VAMDC). Within the BEAMDB there are mainly electron scattering cross section data, but having in mind the importance of spectroscopic data obtained by particle collisions, we also provide a number of electron energy loss spectra and threshold electron spectra. Electron loss spectroscopy with its complementarity to the photon absorption data, provides valuable information on the optically forbidden atomic and molecular transitions. The MolD database contains photodissociation cross sections for the individual ro-vibrational states of the diatomic molecular ions as well as corresponding data on molecular species and molecular state characterizations. The data can be used for further applications, e.g., for non-local thermal equilibrium modeling of early universe chemistry, modeling of the solar atmosphere, atmospheres of white dwarfs, etc.

show abstract

Section: Beamdbmentioning

confidence: 99%

Databases for collisional and radiative processes in small molecules needed for spectroscopy use in astrophysics

Jevremović¹,

Srećković²,

Marinković³

et al. 2020

caosp

View full text Add to dashboard Cite

show abstract

“…MolD project is part of Serbian Virtual Observatory (SerVO) 1 and Virtual Atomic and Molecular Data Center (VAMDC) 2 (see Figure 2). MolD application is implemented as a customisation and extension of NodeSoftware provided by VAMDC.…”

Section: Database Descriptionmentioning

confidence: 99%

“…Therefore, there is an urgent need to collect these data in the databases as well as to develop methods for improving the existing ones. Also, this require a joint effort both of scientists and IT software specialists to develop state-of-the-art infrastructures satisfying their needs, such as Virtual Laboratory [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Radiative and Collisional Molecular Data and Virtual Laboratory Astrophysics

Srećković

Ignjatović

Jevremović

et al. 2017

Atoms

Self Cite

View full text Add to dashboard Cite

Spectroscopy has been crucial for our understanding of physical and chemical phenomena. The interpretation of interstellar line spectra with radiative transfer calculations usually requires two kinds of molecular input data: spectroscopic data (such as energy levels, statistical weights, transition probabilities, etc.) and collision data. This contribution describes how such data are collected, stored, and which limitations exist. Also, here we summarize challenges of atomic/molecular databases and point out our experiences, problems, etc., which we are faced with. We present overview of future developments and needs in the areas of radiative transfer and molecular data.

show abstract

“…In this context, we are developing the MOL-D database. MOL-D database is a collection of cross-sections and rate coefficients for specific collisional processes (Vujčić et al 2015). It can be accessed via http://servo.aob.rs/mold/ of Serbian Virtual Observatory (SerVO, see The database contains photodissociation 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.…”

Section: Overview Of Mol-dmentioning

confidence: 99%

Mol-D a Database and a Web Service within the Serbian Virtual Observatory and the Virtual Atomic and Molecular Data Centre

Srećković¹,

Jevremović²,

Vujčić

et al. 2016

Proc. IAU

Self Cite

View full text Add to dashboard Cite

Abstract. In this contribution we report the current stage of the MOLecular Dissociation (MOL-D) database which is a web service within the Serbian virtual observatory (SerVO) and node within Virtual Atomic and Molecular Data Center (VAMDC). MOL-D is an atomic and molecular (A&M) database devoted to the modelling of stellar atmospheres, laboratory plasmas, industrial plasmas etc. The initial stage of development was done at the end of 2014, when the service for data connected with hydrogen and helium molecular ions was done. In the next stage of the development of MOL-D, we include new cross-sections and rate coefficients for processes which involve species such as XH + , where X is atom of some metal. Data are important for the exploring of the interstellar medium as well as for the early Universe chemistry and for the modeling of stellar and solar atmospheres. In this poster, we present our ongoing work and plans for the future.

show abstract

Development of collisional data base for elementary processes of electron scattering by atoms and molecules

Cited by 14 publications

References 18 publications

Databases for collisional and radiative processes in small molecules needed for spectroscopy use in astrophysics

Databases for collisional and radiative processes in small molecules needed for spectroscopy use in astrophysics

Radiative and Collisional Molecular Data and Virtual Laboratory Astrophysics

Mol-D a Database and a Web Service within the Serbian Virtual Observatory and the Virtual Atomic and Molecular Data Centre

Contact Info

Product

Resources

About