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 …

Context. The relevance of M dwarfs in the search for potentially habitable Earth-sized
planets has grown significantly in the last years. Aims. In our on-going effort to …

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

The mantra “know thy star, know thy planet” has proven to be very important for many
aspects of exoplanet science. Here I review how stellar abundances inform our …

M dwarfs remain active over longer timescales than their Sunlike counterparts, with
potentially devastating implications for the atmospheres of their planets. However, the age at …

The design and construction of CARMENES has been presented at previous SPIE
conferences. It is a next-generation radial-velocity instrument at the 3.5 m telescope of the …

Minimizing the impact of stellar variability in radial velocity (RV) measurements is a critical
challenge in achieving the 10 cm s− 1 precision needed to hunt for Earth twins. Since 2012 …

Age is a stellar parameter that is both fundamental and difficult to determine. Among middle-
aged M dwarfs, the most prolific hosts of close-in and detectable exoplanets, gyrochronology …

The evolution of young stars and disks is driven by the interplay of several processes,
notably the accretion and ejection of material. These processes, critical to correctly describe …

One of the high-level goals of Galactic archaeology is chemical tagging of stars across the
Milky Way to piece together its assembly history. For this to work, stars born together must be …