Brown Dwarfs with Gaia

盖亚计划正在进行一项全天天文测量调查。作为2022年夏季盖亚数据发布的一部分，天体测量加速度将首次可用。这将为识别褐矮星和行星提供一条全新的途径。使用档案数据和新数据的后续工作将涉及轨道参数的识别、表征和约束。这项研究将成为更广泛的后续工作的一部分，以确定新的褐矮星并获取后续光谱。盖亚上所有褐矮星的光谱可以与来自盖亚的运动学信息一起用来解释它们的化学成分和年龄。这些将与盖亚信息一起使用，特别是低分辨率光谱，这被设想为未来数据发布中可能的数据产品。对盖亚样本的科学利用将使我们对褐矮星有更可靠的了解，可能包括推导局部亮度和质量函数，描述基准，以及对年龄/质量等物理参数与光度/光谱特征的相关性分析。预计该项目将包括学生成为Gaia联盟的成员，并关注未来Gaia数据发布的数据质量。

The Gaia project is making an all-sky astrometric survey. As part of the Gaia data release 3 during summer 2022 astrometric accelerations will become available for the first time. This will enable an entirely new route to identify brown dwarfs and planets. The follow-up both using archival and new data will be concerned with the identification, characterisation and constraints on orbital parameters. This study will be part of the wider follow-up effort identifying new brown dwarfs and taking follow-up spectra. Spectra for all brown dwarfs in Gaia can be used along with kinematic information from Gaia to interpret their chemical compositions and ages. These will be used alongside the Gaia information in particular also low resolution spectra which is envisaged as a possible data product in future data releases. Scientific exploitation of the Gaia sample will enable a much more secure understanding of brown dwarfs and may include derivation of the local luminosity and mass function, characterisation of benchmarks and correlations analyses of physical parameters such as age/mass with photometric/spectroscopic features. This project is envisaged to include the student becoming a member of the Gaia consortium and also being concerned with the data quality produced for future Gaia data releases.