BANYAN。XII。来自盖亚-第谷数据的附近年轻协会的新成员
BANYAN. XII. New Members of Nearby Young Associations from Gaia-Tycho Data
摘要:
我们提出了一个搜索恒星成员的年轻协会在150 pc的太阳的基础上盖亚-第谷和更新版本的BANYAN $Σ$软件,以确定贝叶斯成员的概率,包括盖亚-2质量色星等图。我们确定了32个新的F0-M3型真正的成员10-200万年前的斯科-岑,船底座,杜鹃-钟表,天鸽和Octans协会和AB Doradus,$β$风景如画和船底座附近的移动群体。这些新的真正的成员有他们的完整的运动学和文献数据的测量符合一个年轻的年龄。我们还确认了66个先前已知的候选成员使用他们的盖亚-第谷三角距离或新的文献径向速度的成员资格,并确定了219个额外的新候选成员,其中大部分还没有径向速度测量。这项工作是在不久的将来基于Gaia-DR 2对年轻协会成员进行完整性校正调查的第一步。
英文摘要:
We present a search for stellar members of young associations within 150 pc of the Sun based on Gaia-Tycho and an updated version of the BANYAN $Σ$ software to determine Bayesian membership probabilities that includes Gaia-2MASS color-magnitude diagrams. We identify 32 new F0-M3-type bona fide members of the 10-200 Myr-old Sco-Cen, Carina, Tucana-Horologium, Columba and Octans associations and the AB Doradus, $β$ Pictoris and Carina-Near moving groups. These new bona fide members have measurements of their full kinematics and literature data consistent with a young age. We also confirm the membership of 66 previously known candidate members using their Gaia-Tycho trigonometric distances or new literature radial velocities, and identify 219 additional new candidate members, most of which do not yet have a radial velocity measurement. This work is the first step towards a completeness-corrected survey of young association members based on Gaia-DR2 in the near future.
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。