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arXiv 2208.03386astro-ph.GAastro-ph.SR
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用Gaia EDR3资料确定疏散星团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

Ashraf Tadross, Eslam Elhosseiny

摘要:

首次利用盖亚空间观测站(Gaia-EDR 3)早期第三次发布的数据对两个疏散星团Gulliver 18和Gulliver 58进行了光度和天体测量研究。通过研究这两个星系团的自行、弛豫和色星等图,我们确定了它们的实际星系团成员。因此,年龄,颜色过剩,和日心距离的集群被确定。计算了Gulliver 18和Gulliver 58的光度函数、质量函数、总质量、质量分离和弛豫时间。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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