| Recent results from the Cheops space mission: extreme planetary systems |
| Gyula M. Szabó |
| ELTE Gothard Astrophysical Observatory |
| CHEOPS, the Swiss-led European exoplanetary space telescope has been in orbit for four years now, with a recent extension for the coming next two years. As a 30 cm telescope with an unfiltered CCD but an almost limitless pointing capability, CHEOPS is a perfect instrument for follow-up studies of already known exoplanets. Its performance is spectacularly well-suited for confirmation and characterization of TESS discoveries, which are often badly affected by the short time-spans of the TESS sectors. Here we present some outstanding examples of multiplanet systems which offer interesting insights into planet formation and evolution, as well as particular cases when the long-term repeated CHEOPS observations revealed puzzling transit timing variations. |