Magnetic fields play a fundamental role for interior and atmospheric properties of M dwarfs
and greatly influence terrestrial planets orbiting in the habitable zones of these low-mass …

In this article we review small-scale dynamo processes that are responsible for magnetic
field generation on scales comparable to and smaller than the energy carrying scales of …

Stellar dynamos generate magnetic fields that are of fundamental importance to the
variability and evolution of Sun-like and low-mass stars, and for the development of their …

Context. The census of stellar and substellar companions of nearby stars is largely
incomplete, in particular toward the low-mass brown dwarf and long-period exoplanets. It is …

Context. The CARMENES exoplanet survey of M dwarfs has obtained more than 18 000
spectra of 329 nearby M dwarfs over the past five years as part of its guaranteed time …

Context. Proxima Centauri is the closest star to the Sun. This small, low-mass, mid M dwarf is
known to host an Earth-mass exoplanet with an orbital period of 11.2 days within the …

Context. The astrometric discovery of sub-stellar mass companions orbiting stars is
exceedingly hard due to the required sub-milliarcsecond precision, limiting the application of …

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 …

Here we present juliet, a versatile tool for the analysis of transits, radial velocities, or both.
juliet is built over many available tools for the modelling of transits, radial velocities, and …

Context. The CARMENES instrument, installed at the 3.5 m telescope of the Calar Alto
Observatory in Almería, Spain, was conceived to deliver high-accuracy radial velocity (RV) …