PREDNASAJUCI / LECTURER :

Martin Vaňko

(1) Astronomical Institute, Slovak Academy of Sciences,
059 60 Tatranská Lomnica

NAZOV / TITLE :

The fine effects in the TESS light curves of selected CP stars

ABSTRAKT / ABSTRACT :

The light curves of chemically peculiar stars typically show periodic variability due to surface spots,
which in most cases can be modeled by a low-order harmonic expansion. However, high-precision satellite
photometry reveals tiny complex features (called dips) in the light curves of some of these stars that
are difficult to explain as surface phenomena under reasonable assumptions.
An analysis of the dips in the light curves together with spectroscopic observations of several CP stars
will be presented.