Results 21 to 30 of about 10,047 (199)

Stark broadening parameter tables for O VII and Mg XI [PDF]

open access: yesSerbian Astronomical Journal, 1998
By using the semiclassical-perturbation formalism, we have calculated electron-, proton-, and He III-impact line widths and shifts for 14 O VII multiplets and 18 Mg XI multiplets, of importance for research, diagnostic and modeling of various ...
Dimitrijević M.S., Sahal−Bréchot S.
doaj   +1 more source

REGAT: A permanent GPS network in Algeria, configuration and first results

open access: yesHeliyon, 2019
The REGAT (“REseau Géodésique de l'ATlas”) geodetic network is composed of 53 continuously–recording GPS stations distributed in the Algerian Atlas. It spans the whole width of the Algerian coast and reaches 300 km inland, with inter-sites distance of ...
Abdel Karim Yelles-Chaouche   +15 more
doaj   +1 more source

Stark broadening parameter tables for neutral zinc spectral lines [PDF]

open access: yesSerbian Astronomical Journal, 1999
Using a semiclassical approach, we have calculated electron−, proton− and He II−impact line widths and shifts for 32 Zn I multiplets as a function of temperature and perturber density.
Dimitrijević M.S., Sahal−Bréchot S.
doaj   +1 more source

Shallow S-Wave Velocity Structure in the Middle-Chelif Basin, Algeria, Using Ambient Vibration Single-Station and Array Measurements

open access: yesApplied Sciences, 2021
In order to better assess the seismic hazard in the northern region of Algeria, the shear-wave velocity structure in the Middle-Chelif Basin is estimated using ambient vibration single-station and array measurements. The Middle-Chelif Basin is located in
Abdelouahab Issaadi   +4 more
doaj   +1 more source

Stark broadening parameter tables for In III, Tl III and Pb IV [PDF]

open access: yesSerbian Astronomical Journal, 1998
Using a semiclassical approach, we have calculated electron-, proton-, and ionized helium-impact line widths and shifts for 20 In III multiplets for perturber densities 1014− 1020 cm−3 and 2 Tl III multiplets for perturber densities 1017 − 1020 ...
Dimitrijević M.S., Sahal−Bréchot S.
doaj   +1 more source

Current Status and Developments of the Atomic Database on Rare-Earths at Mons University (DREAM)

open access: yesAtoms, 2020
The main purpose of the Database on Rare Earths At Mons University (DREAM) is to provide the scientific community with updated spectroscopic parameters related to lanthanide atoms (Z = 57–71) in their lowest ionization stages.
Pascal Quinet, Patrick Palmeri
doaj   +1 more source

Stark broadening parameter tables for F VI and Cl VII [PDF]

open access: yesSerbian Astronomical Journal, 1998
Using a semiclassical approach, we have calculated electron−, proton−, and He III−impact line widths and shifts for 2 F VI and 10 Cl VII multiplets as a function of temperature and perturber density.
Dimitrijević M.S., Sahal−Bréchot S.
doaj   +1 more source

Stark broadening parameter tables for Ar VIII [PDF]

open access: yesSerbian Astronomical Journal, 1999
Using a semiclassical approach, we have calculated electron−, proton−, and He III−impact line widths and shifts for 9 Ar VIII transitions as a function of temperature and perturber density.
Dimitrijević M.S., Sahal−Bréchot S.
doaj   +1 more source

Radiative Transition Parameters in Atomic Lanthanum from Pseudo-Relativistic Hartree–Fock and Fully Relativistic Dirac–Hartree–Fock Calculations

open access: yesAtoms, 2019
Calculated radiative transition probabilities and oscillator strengths are reported for 392 lines of neutral lanthanum (La I) atom in the spectral range from the near ultraviolet to the mid infrared.
Sébastien Gamrath   +2 more
doaj   +1 more source

The relation between stellar magnetic field geometry and chromospheric activity cycles - I. The highly variable field of ɛ Eridani at activity minimum [PDF]

open access: yes, 2017
The young and magnetically active K dwarf Epsilon Eridani exhibits a chromospheric activity cycle of about 3 years. Previous reconstructions of its large-scale magnetic field show strong variations at yearly epochs.
Barnes, J. R.   +7 more
core   +5 more sources

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