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Stark Broadening of Zn III Spectral Lines

open access: yesUniverse, 2022
Stark widths for spectral lines within 24 multiplets of Zn III singlets and triplets have been calculated using modified semiempirical method for an electron density of 1017 cm−3 and temperatures from 5000 K up to 100,000 K.
Milan S. Dimitrijević   +1 more
doaj   +2 more sources

Stark Broadening of O I Spectral Lines

open access: yesGalaxies
We do not know a priori chemical composition of a star. However, with more high resolution spectra becoming more abundant thanks to the development of space-born observations, atomic data including Stark broadening parameters for various spectral lines ...
Milan S. Dimitrijević   +1 more
doaj   +2 more sources

Review of Recent Advances in the Analytical Theory of Stark Broadening of Hydrogenic Spectral Lines in Plasmas: Applications to Laboratory Discharges and Astrophysical Objects

open access: yesAtoms, 2018
There is presented an overview of the latest advances in the analytical theory of Stark broadening of hydrogenic spectral lines in various types of laboratory and astrophysical plasmas.
Eugene Oks
doaj   +3 more sources

Correcting the Input Data for Calculating the Asymmetry of Hydrogenic Spectral Lines in Plasmas

open access: yesAtoms, 2018
We provide corrections to the data in Sholin’s tables from his paper in Optics and Spectroscopy 26 (1969) 27. Since his data was used numerous times by various authors to calculate the asymmetry of hydrogenic spectral lines in plasmas, our corrections ...
Paul Sanders, Eugene Oks
doaj   +3 more sources

Identification of phase-independent spectral lines in close binary V455 CYG: I. Telluric lines [PDF]

open access: yesSerbian Astronomical Journal, 2007
Spectroscopic observations of close binary star V455 Cygni reveal many lines that originate in interstellar and circumstellar medium and the atmo­sphere of the Earth; we found over two hundred such spectral features, and in this paper we present the list
Cséki A.   +3 more
doaj   +2 more sources

MODERNIZATION OF THE KHARKIV MICROWAVE SPECTROMETER: CURRENT STATE [PDF]

open access: yesRadio Physics and Radio Astronomy, 2023
Subject and Purpose. Results are presented of the recent considerable upgrade implemented at the Kharkiv microwave spectrometer. The upgrade has been aimed at extending the operating frequency range and increasing the utmost accessible spectral ...
E. A. Alekseev   +4 more
doaj   +1 more source

On the Stark broadening of Ru III spectral lines [PDF]

open access: yesBulletin of Natural Sciences Research, 2021
Stark broadening parameters, full widths at half maximum (FWHM) and shifts for spectral lines within six multiplets of doubly charged ruthenium ions have been calculated, for an electron density of 10 17 cm-3 and temperature range from 10 000 K to 160 ...
Dimitrijevć Milan S.
doaj   +1 more source

SQUARE-WAVE FREQUENCY MODULATION IN MICROWAVE SPECTROSCOPY [PDF]

open access: yesRadio Physics and Radio Astronomy, 2022
Subject and Purpose. The frequency modulation (FM)combined with lock-in detection, the technique which is used in microwave spectroscopy for enhancing the sensitivity of measurements, as well as the effects due to standing wavesinthe measuring absorption
E. A. Alekseev   +2 more
doaj   +1 more source

THE RT-32 RADIO TELESCOPE CONSTRUCTION BASED ON THE MARK-4B ANTENNA SYSTEM. 3. LOCAL OSCILLATORS AND SELF-NOISE OF THE RECEIVING SYSTEM [PDF]

open access: yesRadio Physics and Radio Astronomy, 2020
Purpose: High resolution investigation of spectral lines of space sources requires low intrinsic noise of the radio telescope receiving system. It is provided with both input cryogenic amplifiers and low phase noise of local oscillators. To make spectral
O. M. Ulyanov   +25 more
doaj   +1 more source

Update of Atomic Data for the First Three Spectra of Actinium

open access: yesAtoms, 2022
The present article describes a complete reanalysis of all published data on observed spectral lines and energy levels of the first three spectra of actinium (Ac I–III). In Ac I, three previously determined energy levels have been rejected, 12 new energy
Alexander Kramida
doaj   +1 more source

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