Silvotti, RobertoRobertoSilvottiVoss, B.B.VossBruni, I.I.BruniKoester, D.D.KoesterReimers, DieterDieterReimersNapiwotzki, R.R.NapiwotzkiHomeier, DerekDerekHomeier2018-11-072018-11-072005https://resolver.sub.uni-goettingen.de/purl?gro-2/49571We report the detection of nonradial g-mode oscillations in the DA white dwarfs HS 1039+4112 (B = 15.9) and HE 1429-0343 (B = 15.8) from time-series photometry made at the Loiano 1.5 m telescope. The two stars were previously selected as probable pulsators based on two-color photometry and spectral analysis respectively. Following our temperature and surface gravity determinations, HS 1039+4112 (T-eff = 11 200 K, log g = 8.2) is located near the red edge of the ZZ Ceti instability strip, whereas HE 1429-0343 (T-eff = 11 400 K, log g = 7.8) falls in the middle of the strip. Both stars show a multi-mode behavior with the main periods at about 850 and 970 s respectively, and relatively large amplitudes (similar to 7% and similar to 2.5%).journal_article10.1051/0004-6361:2005336200023273000002038265https://resolver.sub.uni-goettingen.de/purl?gs-1/9855