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 …

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 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. The chemical composition of the Sun is required in the context of various studies in
astrophysics, among them in the calculation of standard solar models (SSMs) used to …

Context. The Gaia-ESO Public Spectroscopic Survey is an ambitious project designed to
obtain astrophysical parameters and elemental abundances for 100 000 stars, including …

The Gaia mission has provided an invaluable wealth of astrometric data for more than a
billion stars in our Galaxy. The synergy between Gaia astrometry, photometry, and …

We determined effective temperatures, surface gravities, and metallicities for a sample of
343 M dwarfs observed with CARMENES, the double-channel, high-resolution spectrograph …

Context. The chemical composition of the Sun is a fundamental yardstick in astronomy,
relative to which essentially all cosmic objects are referenced. As such, having accurate …

ABSTRACT HIP 9618 (HD 12572, TOI-1471, TIC 306263608) is a bright (G= 9.0 mag) solar
analogue. TESS photometry revealed the star to have two candidate planets with radii of …