Antonino Lanza (INAF, Catania Astrophysical Observatory)

Interactions between late-type stars and close-in planets
Wann Am 10.10.2014 von 10:30 bis 12:00
Was
  • Kolloquium
Wo SH, Hörsaal
Termin übernehmen vCal / iCal

Late-type stars have outer convection zones where hydromagnetic dynamo action can develop and tides can effectively dissipate kinetic energy.  Therefore, close-in planets can interact with stellar magnetic fields, while their orbital evolution is ruled by  tides and planet-planet gravitational interactions in systems with more than one planet. I shall introduce some selected observations that can provide information on the magnetic or tidal interactions  between planets closer than about 0.1 AU and their host stars. Then I discuss some models proposed to account for those observations.