The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST), also known as
the Guoshoujing Telescope, is a major national scientific facility for astronomical research …

Binary stars are as common as single stars. Binary stars are of immense importance to
astrophysicists because that they allow us to determine the masses of the stars independent …

The formation of our Milky Way can be split up qualitatively into different phases that resulted
in its structurally different stellar populations: the halo and the disk components,–. Revealing …

The ensemble of chemical element abundance measurements for stars, along with precision
distances and orbit properties, provides high-dimensional data to study the evolution of the …

We report discovery of a bright, nearby () Sun-like star orbiting a dark object. We identified
the system as a black hole candidate via its astrometric orbital solution from the Gaia …

We construct from Gaia eDR3 an extensive catalogue of spatially resolved binary stars
within≈ 1 kpc of the Sun, with projected separations ranging from a few au to 1 pc. We …

We derive and publish data-driven estimates of stellar metallicity [M/H] for∼ 175 million stars
with low-resolution XP spectra published in Gaia DR3. The [M/H] values, along with T eff and …

In the ΛCDM paradigm, the Galactic stellar halo is predicted to harbor the accreted debris of
smaller systems. To identify these systems, the H3 Spectroscopic Survey, combined with …

It is now 16 years since the first data release from the Sloan Digital Sky Survey (SDSS; York
et al. 2000). This Early Data Release, or EDR, occurred in 2001 June (Stoughton et al …

We develop, validate and apply a forward model to estimate stellar atmospheric parameters
(T eff, log g, and [Fe/H]), revised distances and extinctions for 220 million stars with XP …