Atmospheric and fundamental parameters of eight nearby multiple stars

AM Hussein, MA Al-Wardat, A Abushattal… - The Astronomical …, 2022 - iopscience.iop.org
We present the complete set of atmospheric and fundamental parameters, in addition to the
masses, for the individual components of eight stellar systems. The list of the systems …

Comparison of Gaia and Hipparcos parallaxes of close visual binary stars and the impact on determinations of their masses

MA Al-Wardat, AM Hussein, HM Al-Naimiy… - Publications of the …, 2021 - cambridge.org
Precise measurement of the fundamental parameters of stellar systems, including mass and
radius, depends critically on how well the stellar distances are known. Astrometry from …

Trigonometric parallax discrepancies in space telescopes measurements I: The case of the stellar binary system Hip 84976

DM Tanineah, AM Hussein, H Widyan… - Advances in Space …, 2023 - Elsevier
In addition to the complete set of fundamental parameters of its individual components, we
present the solution for the discrepancy between the two main astrometric space telescopes …

[PDF][PDF] Gaia vs Hipparcos: the Accuracy of Parallax Measurements

MA Al-Wardat, AM Hussein𝑏… - The Multifaceted …, 2022 - pdfs.semanticscholar.org
In an earlier study of Al-Wardat et al. 2021 [1], which included 1700 stellar systems and
focused on the discrepancies in the parallax measurements given in different catalogs …