Results 21 to 30 of about 883,477 (298)
Stark Broadening of Neutral Boron Lines
Atoms, 2019 Stark broadening parameters, width and shift, of lines within B I 2s22p−2s2ns spectral series have been calculated. Semi-classical theory in impact approximation has been applied. Temperature dependence of Stark parameters has been studied.
Magdalena Christova +2 more
doaj +1 more source
The broad line region of AGN: Kinematics and physics [PDF]
Serbian Astronomical Journal, 2006 In this paper a discussion of kinematics and physics of the Broad Line Region (BLR) is given. The possible physical conditions in the BLR and problems in determination of the physical parameters (electron temperature and density) are considered. Moreover,
Popović L.Č.
doaj +1 more source
Stark Broadening of Al IV Spectral Lines
Universe, 2023 Stark widths for 23 transitions in Al IV have been calculated by employing the modified semiempirical method. The results are obtained for an electron density of 1017 cm−3 and temperatures from 10,000 K to 160,000 K.
Milan S. Dimitrijević +1 more
doaj +1 more source
Database NORAD-Atomic-Data for Atomic Processes in Plasma
Atoms, 2020 The online atomic database of NORAD-Atomic-Data, where NORAD stands for Nahar OSU Radiative, is part of the data sources of the two international collaborations of the Opacity Project (OP) and the Iron Project (IP).
Sultana Nahar
doaj +1 more source
On mutual neutralization process in collisions of magnesium with hydrogen isotopes
Physics of Complex Systems, 2023 Cross sections for mutual neutralization processes in magnesium-deuterium collisions are calculated in the collision energy range 0.001–100 eV by the probability current method.
Ярослав Владимирович Воронов +1 more
doaj +1 more source
AtomsA Q-switched Nd:YAG laser was focused on the Pb–Ti alloy samples in several laser-induced breakdown experiments in order to measure the Stark parameters of several spectral lines (58) of singly ionized titanium, including the 3504.89 Å and 3510.83 Å ...
Lucía Isidoro-García +4 more
doaj +1 more source
Distinguishing coherent atomic processes using wave mixing
, 2012 We are able to clearly distinguish the processes responsible for enhanced low-intensity atomic Kerr nonlinearity, namely coherent population trapping and coherent population oscillations in experiments performed on the Rb D1 line, where one or the other ...
A. M. Akulshin +3 more
core +1 more source
Theoretical investigation of transition data of astrophysical importance in neutral sulphur
Astronomy & AstrophysicsAccurate and comprehensive atomic data are essential for the modelling of stellar spectra. Uncertainties in the oscillator strengths of specific lines used for abundance analyses directly translate into uncertainties in the derived elemental abundances ...
Li W., Amarsi A. M., Jönsson P.
doaj +1 more source
Open Astronomy, 2011 We present a review of our previous ab initio calculations of Stark broadening parameters using semi-classical perturbation method for the calculation of Stark widths and shifts, and the SUPERSTRUCURE (SST) code for the determination of atomic structure.
Hamdi R. +3 more
doaj +1 more source
Teleportation of an atomic ensemble quantum state
, 2004 We propose a protocol to achieve high fidelity quantum state teleportation of a macroscopic atomic ensemble using a pair of quantum-correlated atomic ensembles.
A. Bramati +4 more
core +2 more sources