Hyades Kinematics and the Relationship Between Galactic Coordinates and its Angular Distance from the Apex with Gaia EDR3

IF 0.5 4区物理与天体物理 Q4 ASTRONOMY & ASTROPHYSICS

Kinematics and Physics of Celestial Bodies Pub Date : 2022-09-19 DOI:10.3103/S0884591322050026

Amnah S. Al-Johani, W. H. Elsanhoury, Afaf Al-Juhani, Ghada Al-Qadhi, Manar Al-Anazi, Sarah Al-Balwi, Sarah Al-Hamdi, Shorouq Al-Qahtani, Wejdan Al-Shehri

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引用次数: 0

Abstract

In this paper, we have improved the Hyades members with aid of the Gaia EDR3 source. We have studied their kinematics, including computations of the convergent point with AD-diagram method such as \(\left( {{{A}_{0}},~{{D}_{0}}} \right) = \left( {79^\circ .48 \pm 0^\circ .11,~\,\,6^\circ .85 \pm 0^\circ .38} \right)\), their spatial velocities \(U,~V,~W\,{\text{(km}}\;{{{\text{s}}}^{{ - 1}}}{\text{)}}\), their morphology with 3D. A relation was established for Hyades stars between their Galactic coordinates \(\left( {l,~b} \right)\) and the angular distances \(\left( {{\lambda }} \right)\) from the vertex. The precision criteria of this relation are very satisfactory and a correlation coefficient of value \( \approx 0.90\) was found which proves that the attributes are completely related linearly.

Abstract Image

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基于Gaia EDR3的Hyades运动学及星系坐标与顶点角距的关系

在本文中，我们借助Gaia EDR3源改进了Hyades成员。我们研究了它们的运动学，包括用ad图方法计算收敛点，如\(\left( {{{A}_{0}},~{{D}_{0}}} \right) = \left( {79^\circ .48 \pm 0^\circ .11,~\,\,6^\circ .85 \pm 0^\circ .38} \right)\)，它们的空间速度\(U,~V,~W\,{\text{(km}}\;{{{\text{s}}}^{{ - 1}}}{\text{)}}\)，它们的三维形态。在毕宿星的银河坐标\(\left( {l,~b} \right)\)和到顶点的角距离\(\left( {{\lambda }} \right)\)之间建立了一个关系。该关系的精度判据令人满意，相关系数为\( \approx 0.90\)，证明了属性是完全线性相关的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Kinematics and Physics of Celestial Bodies ASTRONOMY & ASTROPHYSICS-

CiteScore

0.90

自引率

40.00%

发文量

审稿时长

>12 weeks

期刊介绍： Kinematics and Physics of Celestial Bodies is an international peer reviewed journal that publishes original regular and review papers on positional and theoretical astronomy, Earth’s rotation and geodynamics, dynamics and physics of bodies of the Solar System, solar physics, physics of stars and interstellar medium, structure and dynamics of the Galaxy, extragalactic astronomy, atmospheric optics and astronomical climate, instruments and devices, and mathematical processing of astronomical information. The journal welcomes manuscripts from all countries in the English or Russian language.