activity
20192026
most citedCosmic rays in molecular clouds probed by H rovibrational lines -- Perspectives for the James Webb Space Telescope

64 citations · 126 across the 13 of their papers we have counts for

collaborators

13 papers

astro-ph.SR2026

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…

physics.plasm-ph2026

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…

astro-ph.HE2025

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…

physics.plasm-ph2024

Pseudoatom Molecular Dynamics Plasma Microfields

J. R. White, C. J. Fontes, M. C. Zammit +2

Spectral line profiles are powerful diagnostic tools for both laboratory and astrophysical plasmas, as their shape is sensitive to the plasma environment. The low-frequency compone…

physics.plasm-ph2024★ 3 cited

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,…

astro-ph.GA2023

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…

physics.plasm-ph2023★ 1 cited

ThunderBoltz: An Open-Source DSMC-based Boltzmann Solver for Plasma Transport, Chemical Kinetics, and 0D Plasma Modeling

Ryan Park, Brett S. Scheiner, Mark C. Zammit

Plasma-neutral interactions, including reactive kinetics, are often either studied in 0D using ODE based descriptions, or in multi-dimensional fluid or particle based plasma codes.…

astro-ph.HE2023

Enhancements of Electron-Atom Collisions due to Pauli Repulsion in Neutron-Star Magnetic Fields

Thomas Gomez, Mark Zammit, Igor Bray +2

Neutron star surfaces and atmospheres are unique environments that sustain the largest-known magnetic fields in the universe. Our knowledge of neutron star material properties, inc…

physics.atom-ph2023★ 3 cited

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…

astro-ph.GA2022★ 64 cited

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…

physics.plasm-ph2020★ 12 cited

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…

physics.chem-ph2020★ 30 cited

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…

physics.plasm-ph2019★ 13 cited

Impact of a minority relativistic electron tail interacting with a thermal plasma containing high-atomic-number impurities

Nathan A. Garland, Hyun-Kyung Chung, Christopher J. Fontes +6

A minority relativistic electron component can arise in both laboratory and naturally-occurring plasmas. In the presence of high-atomic-number ion species, the ion charge state dis…