| The effect of planetesimal-accretion to type I migration of planetary embryos(*) |
| Bernadett Pál |
| Eötvös University and MTA CSFK CSI |
Investigation of the RR Lyrae stars based on K2 Campaign 3(**) |
| Áron Juhász |
| Eötvös University and MTA CSFK CSI |
|
(*)
I investigated the effect of planetesimal accretion and other relevant parameters to planetary embryo type I
migration, and the capture in to the mean-motion resonances using N-body simulations.
(**) The Kepler K2 mission is investigating the ecliptic since 2014. In Campaign 3 the telescope observed 79 RR Lyrae stars. We carried out a comprehensive analysis of this data set to determine the occurrence rates of the Blazhko phenomenon and the low amplitude additional modes like first and second overtones. This sample is large enough to examine statistically and the occurrence of the Blazhko effect detected by us is consistent with former studies (like Konkoly Blazhko Survey). We found some individually remarkable stars and present two of them. The first is assumed to be a triple-mode (fundamental mode, first & ninth overtone) pulsator and the other is an extremely modulated one. |