activity
20162026
most citedStellar parameters of Be stars observed with X-shooter

25 citations · 54 across the 13 of their papers we have counts for

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9 papers · 1 filter

astro-ph.SR2026★ 1 cited

Review of Machine Learning Models for Solar Energetic Particle Prediction

Spiridon Kasapis, Pouya Hosseinzadeh, Kathryn Whitman +73

Solar energetic particle (SEP) events have attracted increasing attention due to their significant radiation hazards for aviation, spacecraft electronics, and human missions beyond…

astro-ph.SR2021★ 7 cited

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…

astro-ph.SR2018

The solar nitrogen abundance under the LTE assumption

Sameh I. S, M. M. Beheary, Abdelrazek M. K. Shaltout

The solar chemical abundances studied in considerable detail because of discrepant values of solar metallicity inferred from different indicators, where in the present work we have…

astro-ph.SR2018

Estimating the coronal and chromospheric magnetic fields of solar active regions as observed with the Nobeyama Radioheliograph Compared with the Extrapolated Linear Force-Free Field

A. Mouner, Abdelrazek M. K. Shaltout, M. M. Beheary +2

Adopting the thermal free-free emission mechanism, the coronal and chromospheric magnetic fields are derived from the polarization and spectral observations with the Nobeyama Radio…

astro-ph.SR2017

Inference of chromospheric magnetic fields in a sunspot derived from spectropolarimetry of Ca II 8542 A

Ali G. A. Abdelkawy, Abdelrazek M. K. Shaltout, M. M. Beheary +1

We analyze spectropolarimetric observations of the chromospheric Ca II 8542 A line taken by the Interferometric Bidimensional Spectrometer (IBIS) at the Dunn Solar Telescope. The d…

astro-ph.SR2017

The chromospheric magnetic field in active regions derived from spectropolarimetry of Ca II 8542

Ali G. A. Abdelkawy, Abdelrazek M. K. Shaltout, M. M. Beheary

We analyze spectropolarimetric observations of the chromospheric Ca II 8542 line taken by the Interferometric Bidimensional Spectrometer (IBIS) at the Dunn Solar Telescope and phot…