Identification of PG 2303+243 pulsation modes

Abstract

For this study we used total of 40 possibly independent frequencies of pulsation of a cool DA variable star PG 2303+243 observed in 2004 and 2005. Using period spacing diagrams we indentified 10 l = 1 and 14 l = 2 modes with a mean period spacing of 52.00 s for l = 1 modes and 31.85 s for l = 2 modes.