TESS Science Conference I, Massachusetts, Amerika Birleşik Devletleri, 22 - 26 Temmuz 2019, ss.39
TESS provides a unique possibility to observe bright RR Lyrae stars and Cepheids over the entire sky, hence providing information on dynamical phenomena in these stars, such as the Blazhko modulation, period doubling, shock-wave propagation, and additional modes. Groundbased follow-up observations ensure that multi-color and spectroscopic information can help to unravel the atmospheric processes at play. In this talk, I will present some of the first findings on our favorite standard candles, seen by TESS