Imaging Surface Spots from Space-Borne Photometry

摘要: A general introduction to the foundations of spot modelling is given. It considers geometric models surface brightness distribution in late-type stars as can be derived from their wide-band optical light curves. Spot becoming more and important thanks high-precision, high duty-cycle photometric time series made available by space-borne telescopes designed search for planets through method transits. I review approaches based on a few spots well sophisticated techniques that assume continuous distributions active regions adopt regularization methods developed solve ill-posed problems. The use transit curves map occulted planet it moves across disc its host star also briefly described. In all cases, main emphasis basic principles testing rather than results obtained application.