Wandering near the red edge: photometric observations of three cool ZZ Ceti stars

Zs. Bognár, M. Paparó, Á. Sódor +11

We summarize our findings on three cool ZZ Ceti type pulsating white dwarfs. We determined eight independent modes in HS 0733+4119, of which seven are new findings. For GD 154, we…