Pre-TESS observations of pulsating white dwarf stars at Konkoly Observatory

The TESS (Transiting Exoplanet Survey Satellite) all-sky survey space mission provides a unique opportunity to study the pulsations of white dwarf variables with its 120-second cadence mode. We performed survey observations at the Piszkéstető mountain station of Konkoly Observatory, Hungary, to find new bright white dwarf pulsators, which could be potentially interesting targets for TESS observations. We successfully identified two new ZZ Ceti pulsators, WD 1310+583 and PM J22299+3024. We also performed extended observations of other proposed TESS targets, LP 119-10 and HS 1625+1231, respectively. With the one-season long measurements of these stars, we determined a set of eigenmodes for all targets. We present here the results of our measurements on these four ZZ Ceti variables.