444 citations
- Centre National de la Recherche ScientifiqueFR5 papers
- King Saud UniversitySA4 papers
- National Research Institute of Astronomy and GeophysicsEG4 papers
- Purdue University West LafayetteUS3 papers
- Tunis El Manar UniversityTN3 papers
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- University of Arkansas at FayettevilleUS3 papers
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- Astronomical ObservatoryRS2 papers
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- Friedrich Schiller University JenaDE2 papers
5 papers · 1 filter
Waves in weakly ionised solar plasmas
A. Alharbi, I. Ballai, V. Fedun +1
Here we study the nature and characteristics of waves propagating in partially ionised plasmas in the weakly ionised limit, typical for the lower part of the solar atmosphere. The…
Slow magnetoacoustic waves in gravitationally stratified two-fluid plasmas in strongly ionised limit
A. Alharbi, I. Ballai, V. Fedun +1
The plasma dynamics at frequencies comparable with collisional frequency between various species has to be described in multi-fluid framework, where collisional interaction between…
An Extensive Photometric Investigation of the W UMa System DK Cyg
M. M. Elkhateeb, M. I. Nouh, E. Elkholy +1
DK Cyg (P = 0.4707) is a W Ursae Majoris type eclipsing binary system that undergoes complete eclipses. All the published photoelectric data have been collected and utilized to re-…
White Dwarf Stars as Polytropic Gas Spheres
M. I. Nouh, A. S. Saad, M. M. Elkhateeb +1
Due to the highly degeneracy of electrons in white dwarf stars, we expect that the relativistic effects play very important role in these stars. In the present article, we study th…
Stark widths of Ar III spectral lines in the atmospheres of subdwarf B stars
Rafik Hamdi, Nabil Ben Nessib, Sylvie Sahal-Bréchot +1
Using semiclassical perturbation approach in impact approximation, we have calculated Stark widths for 32 spectral lines of doubly charged argon (Ar III). Oscillator strengths are…