65 citations · 238 across the 15 of their papers we have counts for
16 papers
A New Approach to Modeling Line Shapes with Quasi-H Satellites in Stellar Atmospheres
Jackson R. White, Thomas A. Gomez, Mark C. Zammit +6
Theoretical spectral line shapes describe the distribution of opacity due to bound electronic transitions in hot dense plasmas and are used to fit emergent spectra from many astrop…
Collisional-radiative data for tokamak disruption mitigation modeling
Prashant Sharma, Christopher J. Fontes, Dmitry V. Fursa +6
Effective tokamak disruption mitigation is crucial for ensuring the safety and integrity of fusion power reactors. Accurate collisional-radiative (CR) modeling of a radiative plasm…
Excitation of molecular hydrogen by cosmic-ray protons
Marco Padovani, Daniele Galli, Corey T. Plowman +4
Low-energy cosmic rays ( GeV) are responsible for the ionisation and heating of molecular clouds. While the role of supra-thermal electrons produced in the ionisation…
Attosecond Time Delays at Cooper Minima in Valence-Shell Photoionization of Alkali and Alkaline-Earth Metal Atoms
Adam J. C. Singor, Dmitry V. Fursa, Igor Bray +1
Ji \etal [New J. Phys. {\bf 26}, 093014 (2024)] established a direct link between the photoionization cross section and the attosecond time delay near Cooper minima (CM) in the val…
Experimental Validation of Collision-Radiation Dataset for Molecular Hydrogen in Plasmas
Keisuke Fujii, Keiji Sawada, Kuzmin Arseniy +7
Quantitative spectroscopy of molecular hydrogen has generated substantial demand, leading to the accumulation of diverse elementary-process data encompassing radiative transitions,…
Ultraviolet H luminescence in molecular clouds induced by cosmic rays
Marco Padovani, Daniele Galli, Liam H. Scarlett +5
Galactic cosmic rays (CRs) play a crucial role in ionisation, dissociation, and excitation processes within dense cloud regions where UV radiation is absorbed by dust grains and ga…
Photoionization from the ground and excited vibrational states of H+2 and its deuterated isotopologues
Adam Singor, Liam H. Scarlett, Mark C. Zammit +2
Photoionization cross sections and rate coefficients have been calculated for all bound vibrational levels of the 1s state of H, HD, and D…
Cosmic rays in molecular clouds probed by H rovibrational lines -- Perspectives for the James Webb Space Telescope
Marco Padovani, Shmuel Bialy, Daniele Galli +7
Cosmic rays (CRs) at sub-TeV energies play a fundamental role in the chemical and dynamical evolution of molecular clouds, as they control the ionisation, dissociation, and excitat…
Isotopic and vibrational-level dependence of H dissociation by electron impact
Liam H. Scarlett, Dmitry V. Fursa, Jack Knol +2
The low-energy electron-impact dissociation of molecular hydrogen has been a source of disagreement between various calculations and measurements for decades. Excitation of the gro…
Benchmark Calculations of Electron Impact Electronic Excitation of the Hydrogen Molecule
T. Meltzer, J. Tennyson, Z. Mašín +4
We present benchmark integrated and differential cross-sections for electron collisions with H using two different theoretical approaches, namely, the R-matrix and molecular co…
Non-LTE analysis of K I in late-type stars
Henrique Reggiani, Anish M. Amarsi, Karin Lind +7
Older GCE models predict [K/Fe] ratios as much as 1 dex lower than those inferred from stellar observations. Abundances of potassium are mainly based on analyses of the 7698 re…
Inelastic e+Mg collision data and its impact on modelling stellar and supernova spectra
P. S. Barklem, Y. Osorio, D. V. Fursa +4
Results of calculations for inelastic e+Mg effective collision strengths for the lowest 25 physical states of Mg I (up to 3s6p 1P), and thus 300 transitions, from the convergent cl…
Solving close-coupling equations in momentum space without singularities for charged targets
A. W. Bray, I. B. Abdurakhmanov, A. S. Kadyrov +2
The analytical treatment of the Greens function in the convergent close-coupling method [Bray et al. Comp. Phys. Comm. 203 147 (2016)] has been extended to charged targets. Further…
Calculations for electron-impact excitation and ionization of beryllium
Oleg Zatsarinny, Klaus Bartschat, Dmitry V. Fursa +1
The B-spline R-matrix and the convergent close-coupling methods are used to study electron collisions with neutral beryllium over an energy range from threshold to 100 eV. Coupling…
Integral cross sections for electron scattering by ground state Ba atoms
D. V. Fursa, S. Trajmar, I. Bray +4
We have used the convergent close-coupling method and a unitarized first-order many-body theory to calculate integral cross sections for elastic scattering and momentum transfer, f…
Quantum-mechanical calculation of Stark widths of Ne VII n=3, transitions
Yuri V. Ralchenko, Hans R. Griem, Igor Bray +1
The Stark widths of the Ne VII 2s3s-2s3p singlet and triplet lines are calculated in the impact approximation using quantum-mechanical Convergent Close-Coupling and Coulomb-Born-Ex…