Abstract The Second Workshop on Extreme Precision Radial Velocities defined circa 2015
the state of the art Doppler precision and identified the critical path challenges for reaching …

The discovery of only a handful of exoplanets required establishing a correlation between
giant planet occurrence and metallicity of their host stars. More than 20 years have already …

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 …

To date, the radial velocity (RV) method has been one of the most productive techniques for
detecting and confirming extrasolar planetary candidates. Unfortunately, stellar activity can …

Context. The discovery of Proxima b marked one of the most important milestones in
exoplanetary science in recent years. Yet the limited precision of the available radial velocity …

Measured spectral shifts due to intrinsic stellar variability (eg, pulsations, granulation) and
activity (eg, spots, plages) are the largest source of error for extreme-precision radial-velocity …

Aims. The main objective of this project is to characterise chromospheric activity of FGK stars
from the HARPS archive. We start, in this first paper, by presenting a catalogue of …

We determine rotation periods of a sample of 48 late F-type to mid-M dwarf stars using time
series high-resolution spectroscopy of the Ca ii H&K and H α chromospheric activity …

Context. Stellar activity poses one of the main obstacles for the detection and
characterisation of small exoplanets around cool stars, as it can induce radial velocity (RV) …