Mgr. Ľubomír Hambálek, PhD.
variable stars, eclipsing binaries, exoplanets
059 60 Vysoké Tatry
In my research, I am interested in observing variations of stellar flux in time which usually means that there is a physical mechanism causing the periodic dimmings. We call these the variable stars. Depending on the exact mode of changes, periodicity, amplitude, and several other parameters, we can model the object as e.g. eclipsing binary, or an exoplanet orbiting its parent star. The research also focuses on determining, if the candidate object is indeed an exoplanet, or not. It can be a more massive, so-called brown dwarf – an „undeveloped “ star, or a special type of close binary star, in which both stars cover a tiny amount of the surface of the other companion. Sometimes other types of variability are observed in these studies, and we aim to provide a physical explanation. My other objects of interest that fall in the broader „variable star “ category are young stars, rotationally variable stars, stars with a spotted surface, stars with pulsating components, and also stars that are in fact multiple stars and not made up only from two components.