We investigate how the observed large-scale surface magnetic fields of low-mass stars (∼
0.1–2 M⊙), reconstructed through Zeeman–Doppler imaging, vary with age t, rotation and X …

We present the results of a major high-resolution spectropolarimetric BCool project magnetic
survey of 170 solar-type stars. Surface magnetic fields were detected on 67 stars, with 21 …

We present results from a set of numerical simulations aimed at exploring the mechanism of
coronal mass ejection (CME) suppression in active stars by an overlying large-scale …

There is a large change in surface rotation rates of sun-like stars on the pre-main sequence
and early main sequence. Since these stars have dynamo-driven magnetic fields, this …

Solar-type stars exhibit a rich variety of magnetic activity. Seeking to explore the convective
origins of this activity, we have carried out a series of global three-dimensional …

Global magnetic fields of active solar-like stars are, nowadays, routinely detected with
spectropolarimetric measurements and are mapped with Zeeman Doppler imaging (ZDI) …

Aims. We investigate the magnetic field at the surface of 48 red giants selected as promising
for detection of Stokes V Zeeman signatures in their spectral lines. In our sample, 24 stars …

The surface rotation rates of young solar-type stars vary rapidly with age from the end of the
pre-main sequence through the early main sequence. Important changes in the dynamos …

PolarBase is an evolving database that contains all stellar data collected with the
ESPaDOnS and NARVAL high-resolution spectropolarimeters, in their reduced form, as …

Context. The long-term monitoring of magnetic cycles in cool stars is a key diagnostic in
understanding how dynamo generation and amplification of magnetic fields occur in stars …