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- National Research Institute of Astronomy and GeophysicsEG7 papers
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- Zewail City of Science and TechnologyEG4 papers
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6 papers · 1 filter
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…
Do the solar flares' locations illustrate the boundaries of the solar inner layers?
Ramy Mawad
The angular distance of the heliographical or helioprojective coordinates of the solar flares to the projective point of the center of the Sun on the solar disk has been studied du…
OH maser toward IRAS 06056+2131: polarization parameters and evolution status
Mohamed Said darwish, Anita M. S. Richards, Sandra Etoka +4
We present high angular resolution observations of OH maser emission towards the high-mass star forming region IRAS 06056+2131. The observations were carried out using the UK radio…
The LTE solar abundance of neodymium
A. G. A. Abdelkawy, Abdelrazek M. K. Shaltout, M. M. Beheary +1
We study the solar photospheric abundance of singly ionized neodymium (Nd II) using high resolution spectroscopic data obtained by Fourier transform spectrograph (FTS). Based on th…
Stellar parameters of Be stars observed with X-shooter
A. Shokry, Th. Rivinius, A. Mehner +10
Aims. The X-shooter archive of several thousand telluric star spectra was skimmed for Be and Be-shell stars to derive the stellar fundamental parameters and statistical properties,…
Orbital solution and evolutionary state for the eclipsing binary 1SWASP J080150.03+471433.8
M. S. Darwish, M. M. Elkhateeb, M. I. Nouh +5
We present an orbital solution study for the newly discovered system 1SWASP J080150.03+471433.8 by means of new CCD observations in VRI bands. Our observations were carried out on…