Results 41 to 50 of about 92,694 (289)
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
The Spectroscopic Atomic and Molecular Databases at the Paris Observatory
Atoms, 2020 This paper is intended to give a comprehensive overview of the current status and developments of the Paris Observatory STARK-B, MOLAT and SESAM databases which can be interrogated thanks to interoperability tools.
Evelyne Roueff +4 more
doaj +1 more source
On the influence of Stark broadening on Si I lines in stellar atmospheres
, 2003 We study the influence of Stark broadening and stratification effects on Si\i lines in the rapidly oscillating (roAp) star 10 Aql, where the Si\i 6142.48 \AA and 6155.13 \AA lines are asymmetrical and shifted.
Anstee +23 more
core +1 more source
Unified line profiles for hydrogen perturbed by collisions with protons: satellites and asymmetries [PDF]
, 2015 We present new calculations of unified line profiles for hydrogen perturbed by collisions with protons. We report on new calculations of the potential energies and dipole moments which allow the evaluation of profiles for the lines of the Lyman series up
Kepler, S. O. +2 more
core +2 more sources
On the nature of sn stars. I. A detailed abundance study [PDF]
, 2014 The sn stars present sharp Balmer lines, sharp metallic lines and broad coreless He I lines. Initially Abt & Levato proposed a shell-like nature to explain the sn stars, although this scenario was subsequently questioned.
Levato, H., Saffe, C.
core +3 more sources
UVES and X-Shooter spectroscopy of the emission line AM CVn systems GP Com and V396 Hya [PDF]
, 2016 We present time-resolved spectroscopy of the AM CVn-type binaries GP Com and V396 Hya obtained with VLT/X-Shooter and VLT/UVES. We fully resolve the narrow central components of the dominant helium lines and determine radial velocity semi-amplitudes of ...
Groot, P. J. +5 more
core +9 more sources
Stark Broadening from Impact Theory to Simulations
Atoms, 2017 Impact approximation is widely used for calculating Stark broadening in a plasma. We review its main features and different types of models that make use of it.
Roland Stamm +8 more
doaj +1 more source
Atoms, 2020 We developed an echelle spectrometer for the simultaneous observation of the whole visible range with a high instrumental resolution, for example, 0.055 nm (full width at the half maximum) at 400 nm and 0.10 nm at 750 nm.
Hirotaka Tanaka +5 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Stark broadening of Cd I spectral lines [PDF]
Astronomy & Astrophysics, 2005 Stark broadening parameters, widths, and shifts for 33 Cdl singlets and 37 triplets were calculated using the semi-classical perturbation method. The results were compared with available experimental and theoretical data. Also, regularity in the spectral series 5s 2 S-np 1 P° was investigated.
Simic, Zoran +3 more
openaire +3 more sources