The evolution of the content of heavy elements in galaxies, the relative chemical
abundances, their spatial distribution, and how these scale with various galactic properties …

The advent of the second data release of the Gaia mission, in combination with data from
large spectroscopic surveys, is revolutionizing our understanding of the Galaxy. Thanks to …

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 spectroscopic and photometric follow-up of a dormant black hole (BH) candidate
from Gaia DR3. The system, which we call Gaia BH2, contains a∼ 1 M⊙ red giant and a …

Context. In the last 15 years different ground-based spectroscopic surveys have been
started (and completed) with the general aim of delivering stellar parameters and elemental …

We describe the catalogs assembled and the algorithms used to populate the revised TESS
Input Catalog (TIC), based on the incorporation of the Gaia second data release. We also …

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 …

Abstract Our Milky Way should host an ancient, metal-poor, and centrally concentrated
stellar population, which reflects the star formation and enrichment in the few most massive …

Studies of the geometry and energy content of the Universe, physics of cosmic expansion,
fundamental properties of standard model particles, and growth of structure remain the key …

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 …