Poster Abstracts

Name/Affiliation:  Panos Ioannidis (Hamburger Sternwarte)

Title:  Monitoring the behaviour of spots using photometric data

Abstract:
We use high accuracy photometric data to monitor the behaviour of spots. We develop an algorithm which can calculate the size, longitude and latitude of spots or spot groups, using high accuracy photometric light curves, in short computational time. To do so, it separates the light curve in rotational-period sized intervals and then it calculates those parameters, by using limb darkened spot crossing models. The results can then be then used to identify population of spots, active regions on the stellar surface, mean spot lifetime or even activity cycle evidences.