论文标题

使用Gaia EDR3数据确定的开放簇Gulliver 18和Gulliver 58的主要天体物理参数

The principal astrophysical parameters of the open clusters Gulliver 18 and Gulliver 58 determined using Gaia EDR3 data

论文作者

Tadross, Ashraf, Elhosseiny, Eslam

论文摘要

首次使用Gaia空间天文台(GAIA-EDR3)的第三个数据释放,对两个开放型星簇Gulliver 18和Gulliver 58进行了光度和天文研究。通过研究两个簇的适当动作,视差和颜色磁性图,我们确定了它们的实际群集成员身份。因此,确定了群集的年龄,颜色过多和中心距离。还估计了格列佛18和格列佛58的光度函数,质量函数,总质量,质量分离和松弛时间。

A photometric and astrometric study of the two open star clusters Gulliver 18 and Gulliver 58 was carried out for the first time using the early third data release of the Gaia space observatory (Gaia-EDR3). By studying the proper motions, parallaxes, and color-magnitude diagrams of the two clusters, we determined their actual cluster membership. Therefore, ages, color excesses, and heliocentric distances of the clusters were determined. The luminosity function, mass function, total mass, mass segregation, and relaxation time of Gulliver 18 and Gulliver 58 were estimated as well.

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