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Orbits and Individual Masses of Some Visual Binaries
Astrophysics ( IF 0.5 ) Pub Date : 2021-03-08 , DOI: 10.1007/s10511-021-09666-3
E. A. Elkholy , W. H. Elsanhoury , M. I. Nouh

The orbits of visual binary systems still attract the interest of many working groups in astronomy. These orbits are the most important and reliable sources of stellar masses. In the present paper, we computed the orbits and dynamical masses of some visual binaries using an independent code. We used the Kowalsky method to compute the geometrical elements, while the dynamical elements (the orbital period and the time of periastron passage) were computed by implementing the double areal constant. We used the developed code to calculate the orbits for four visual binaries: WDS J02262+3428, WDS J14310-0548, WDS J17466-0354, and WDS J12422+2622. We introduce a new orbit for the neglected visual binary WDS J17466-0354 and modified the orbits for the remaining three binaries. Using Gaia DR2 parallaxes, we computed the total and individual dynamical masses of the systems. Comparing the adopted masses with those derived from the mass-spectral type relation revealed good agreement.



中文翻译:

一些视觉双星的轨道和个体质量

视觉二元系统的轨道仍然吸引着许多天文学工作组的兴趣。这些轨道是恒星质量的最重要和最可靠的来源。在本文中,我们使用独立的代码计算了一些视觉二进制文件的轨道和动力学质量。我们使用Kowalsky方法来计算几何元素,而动力学元素(轨道周期和周星通过的时间)是通过实现双重面常数来计算的。我们使用开发的代码来计算四个视觉二进制文件的轨道:WDS J02262 + 3428,WDS J14310-0548,WDS J17466-0354和WDS J12422 + 2622。我们为被忽略的视觉二进制WDS J17466-0354引入了一个新轨道,并为其余三个二进制文件修改了轨道。使用Gaia DR2视差,我们计算了系统的总和单独的动态质量。将采用的质量与衍生自质谱类型关系的质量进行比较,可以得出很好的一致性。

更新日期:2021-03-08
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