The calibration of the Radial Velocity Spectrometer (RVS) onboard the ESA Gaia satellite (to be launched in 2012) requires a list of standard stars with a radial velocity (RV) known with an accuracy of at least 300 m/s. The IAU Commission 30 lists of RV standard stars are too bright and not dense enough. We describe the selection criteria due to the RVS constraints for building an adequate full-sky list of at least 1000 RV standards from catalogues already published in the literature. A preliminary list of 1420 candidate standard stars is built and its properties are shown. An important re-observation programme has been set up in order to ensure within it the selection of objects with a good stability until the end of the Gaia mission (around 2018). The present list of candidate standards is available at CDS and usable for many other projects.
A Careful Reassessment of Globular Cluster Multiple Population Radial Distributions with Sloan Digital Sky Survey and Johnson-Cousins Broadband Photometry
The radial component of the local Galactic magnetic field in 3D
RWTH Aachen University（亚琛工业大学）；Stanford University（斯坦福大学）；University of Vienna（维也纳大学）；University of Wisconsin, Whitewater（威斯康星大学惠特沃分校）；University of Calgary（卡尔加里大学）；Radboud University（拉德堡德大学）；University of British Columbia, Okanagan Campus（不列颠哥伦比亚大学奥肯纳根分校）；Dominion Radio Astrophysical Observatory, Herzberg Research Centre for Astronomy and Astrophysics, National Research Council（Dominion射电天文台，赫茨伯格天体物理学与天文学研究中心，国家研究委员会）
Contribution of Gaia Sausage to the Galactic Stellar Halo Revealed by K Giants and Blue Horizontal Branch Stars from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, Sloan Digital Sky Survey, and Gaia
Validation of the Bond et al. (2010) SDSS-derived kinematic models for the Milky Way's disk and halo stars with Gaia Data Release 3 proper motion and radial velocity data
本文利用 Gaia DR3 数据验证 Bond et al. (2010) 基于 SDSS 的银河系盘星与晕星运动学模型，证实其对盘星旋转速度偏态分布、垂直梯度及三分量速度弥散的预测准确，并确认晕星速度椭球在球坐标下的空间不变性。
