output
19982026
most citedRate of Period Change as a Diagnostic of Cepheid Properties

125 citations

Showing 2022 · astro-ph.SRShow all

5 papers · 2 filters

astro-ph.SR2022★ 14 cited

Discovery and description of two young open clusters in the primordial group of NGC 6871

Juan Casado, Yasser Hendy

A primordial group of open clusters containing NGC 6871 is confirmed and described through Gaia DR3 data and the previous literature. It is a star-forming complex containing at lea…

astro-ph.SR2022★ 2 cited

Spectroscopic and Photometric Study of the new Scuti Star ASAS J063309+1810.8

Mohamed I. Nouh, Mohamed Abdel-Sabour, Ahmed Shokry +3

We present BVR observations and low-resolution spectra collected by the Kottamia Astronomical Observatory 1.88 m telescope (KAO) for the new pulsating star ASAS J063309+1810.8 (her…

astro-ph.SR2022★ 1 cited

Spectral Behaviour and Flaring Activity of II Peg in the Ultraviolet

M. R Sanad

We have investigated the spectral behaviour of II Peg binary system in the ultraviolet band by using International Ultraviolet Explorer observations over fifteen years. The ultravi…

astro-ph.SR2022★ 3 cited

Photometric and Spectroscopic Analysis of the SX Phe Star BL Cam

Mohamed Abdel-Sabour, Mohamed I. Nouh, Ahmed Shokry +5

In the present paper, we report the photometric and spectroscopic observations obtained by the 1.88 m telescope at the Kottamia astronomical observatory of the pulsating star BL Ca…

astro-ph.SR2022★ 10 cited

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…