Magnetic field

Using scaling law deduced from published stellar rotation & dynamo simulations, will provide (1-12 months) for star for which magnetic observations are absent or X-ray proxy from WP4.3 not yet available, rotation and magnetic field (field amplitude, possibly dominant topology) proxy for host star. Use the guessed B field to compute 1-D wind model (1-12 months) for main target list and at t=18 months using WP4.3 input into multi-D simulations computed realistic host star wind. Output: realistic wind solution. From wind simulations, will determine stellar wind characteristics such as Alfvén radius, turbulent ram pressure, magnetic pressure and particles density at planetary orbits and from pressure balance between wind and planet’s magnetosphere will assess minimal (induced or intrinsic) planetary magnetosphere size. A first release of output/parameters in year 0-1 is planned and then a more complete release at the end of the project with more accurate evaluation of the parameters.