The Bcool project is mainly driven by high-resolution spectropolarimetric observations aimed at measuring Zeeman-induced polarization in spectral lines.

Bcool spectropolarimetric observations are collected with three high-resolution échelle spectropolarimeters : ESPaDOnS at the Canada-France-Hawaii Telescope (Hawaii, USA), NARVAL at the Télescope Bernard Lyot (Pic du Midi, France) and to a lesser extent HARPSpol at ESO 3.6m Telescope (La Silla, Chile).

• TBL LPs “BCool large program : Dynamo processes and magnetic cycles in solar-type stars”
  • LP17-18: 87 nights
  • LP15-16: 65 nights
  • LP13-14: 83 nights

• TBL PI programs “Key program: Dynamo processes and magnetic cycles in solar-type stars” and studies focused on specific targets
  • more than 100 nights awarded since semester 2008A.