Results 11 to 20 of about 9,838,903 (305)

Excitation of silver by electron impact [PDF]

open access: yesJournal of Physics: Conference Series, 2012
Differential cross sections for electron impact excitation of the 5p state of silver have been measured in conjunction with relativistic distorted-wave calculations.
S D Tošić   +5 more
openaire   +2 more sources

Rise and fall of electron temperatures: Ohmic heating of ionospheric electrons from underdense HF radio wave pumping [PDF]

open access: yes, 2010
Here we present electron temperature variations observed with incoherent scatter radar during a European Incoherent Scatter Scientific Association Heating experiment with high-frequency (HF) radio wave transmission at frequencies above the peak ...
Gustavsson, B.   +3 more
core   +4 more sources

Electron Impact Excitation of F-Like W LXVI

open access: yesAtoms, 2016
Electron impact excitation collision strengths are calculated for all transitions among 113 levels of the 2s 2 2p 5 , 2s2p 6 , 2s 2 2p 4 3ℓ, 2s2p 5 3ℓ, and 2p 6 3ℓ configurations of F-like W LXVI. For this
Kanti M. Aggarwal
doaj   +1 more source

Electron-impact excitation of neutral boron using the R-matrix with pseudostates method [PDF]

open access: yes, 1989
We have carried out a large R-matrix with pseudostates (RMPS) calculation of the electron-impact excitation of neutral boron. The RMPS method has been employed for the excitation/ionisation of many light fusion related species, but primarily for one or ...
Gorkhover, Tais   +999 more
core   +10 more sources

R-Matrix Scattering Calculations for Iron-Peak Species: Photoionisation of Fe I and Electron-Impact Excitation of Fe II

open access: yesGalaxies, 2018
An abundance of absorption and emission lines of iron-peak species such as Fe I and Fe II can be seen in the spectra of many astrophysical objects. Thus, the accurate modelling of such spectra requires sets of high quality atomic data for these species ...
Ryan T. Smyth   +2 more
doaj   +1 more source

The electron energy distribution during HF pumping, a picture painted with all colors [PDF]

open access: yes, 2005
International audienceThe shape of the electron energy distribution has long been a central question in the field of high-frequency radio-induced optical emission experiments.
Rietveld, Michael T.   +37 more
core   +2 more sources

Electron-Impact Dissociation of Vibrationally-Excited Molecular Hydrogen into Neutral Fragments

open access: yesAtoms, 2019
We present convergent close-coupling (CCC) calculations of electron-impact dissociation of vibrationally-excited molecular hydrogen into neutral fragments.
Liam H. Scarlett   +4 more
doaj   +1 more source

On the Excitation of Polarised Light by Electron Impact [PDF]

open access: yesProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1926
Abstract In the course of some experiments on polarisation effects shown by mercury lines, emitted from a low-pressure electron-maintained arc, it was found that the yellow mercury lines λ 5770, 5791 are weakly polarised even in the absence of a magnetic field, the direction of the maximum electric vector being parallel to the ...
openaire   +1 more source

Electron Impact Excitation of Extreme Ultra-Violet Transitions in Xe7–Xe10 Ions

open access: yesAtoms, 2021
In the present work, a detailed study on the electron impact excitation of Xe7+, Xe8+, Xe9+ and Xe10+ ions for the dipole allowed (E1) transitions in the EUV range of 8–19 nm is presented.
Aloka Kumar Sahoo, Lalita Sharma
doaj   +1 more source

Insights into Density and Location Diagnostics of Photoionized Outflows in X-Ray Binaries

open access: yesThe Astrophysical Journal, 2023
The population of metastable levels is key to high-precision density diagnostics of astrophysical plasmas. In photoionized plasmas, density is used to infer the distance from the ionizing source, which is otherwise difficult to obtain.
Sharon Mitrani, Ehud Behar
doaj   +1 more source

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