490 citations
- Zewail City of Science and TechnologyEG12 papers
- Rutgers, The State University of New JerseyUS10 papers
- A. Alikhanyan National LaboratoryAM9 papers
- Imam Mohammad ibn Saud Islamic UniversitySA9 papers
- King Abdulaziz UniversitySA9 papers
- Massachusetts Institute of TechnologyUS9 papers
- University of VirginiaUS9 papers
- Ain Shams UniversityEG8 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BariIT8 papers
- Kharkiv Institute of Physics and TechnologyUA8 papers
- Seoul National UniversityKR8 papers
13 papers · 1 filter
Detection of wide binary and multiple nuclei of planetary nebulae using the Gaia DR3
A. Ali, J. M. Khalil, A. Mindil
Context: this paper describes the detection of wide binary and multiple central stars (CSs) of Galactic planetary nebulae (PNe) using the most up-to-date data available from the Ga…
Characterising the high-mass star forming region IRAS 18144-1723 through methanol maser observations
Esraa Khafagy, khaled A. Edris, Osama M. Shalabiea +3
We introduce a study of the massive star forming region IRAS 18144--1723 using observations of the 6.7 GHz methanol maser line. Such regions are opaque at short wavelengths but can…
A Model of Homologous Confined and Ejective Eruptions Involving Kink Instability and Flux Cancellation
Alshaimaa Hassanin, Bernhard Kliem, Norbert Seehafer +1
In this study, we model a sequence of a confined and a full eruption, employing the relaxed end state of the confined eruption of a kink-unstable flux rope as the initial condition…
A comprehensive photometric and kinematical characteristic of the newly discovered QCs clusters with Gaia EDR3
W. H. Elsanhoury, Magdy Y. Amin, A. A. Haroon +1
This study reports the first comprehensive astrometric, photometric and kinematical analysis of four newly discovered open clusters; namely QC1, QC2, QC3, and QC4, using astrometri…
IFU spectroscopy of Southern PNe: VII Photo-ionization modelling of intermediate excitation class objects
A. Ali, M. A. Dopita
We present integral field unit spectroscopic observations of southern Galactic planetary nebulae (PNe), IC 2501, Hen 2-7, and PB4. The goal of studying these objects together is th…
Long-term Spot Stability in the Post-common-envelope Binary QS Vir
Olivera Latković, Attila Cséki, Gojko Djurašević +3
We observed the post-common-envelope eclipsing binary with a white dwarf component, QS Vir, using the 1.88 m telescope of Kotammia Observatory in Egypt. The new observations were a…