Preliminary Results in White Dwarf Research by a New Group
Abstract
A new group, named PiStA, has been established for investigation of white dwarf stars by undergraduate students. Beside a contribution to WET/DARC campaigns, an independent research program has been started. Up to now data collection has been carried out for 5 stars (GD 154, GD 244, KUV 02464+3239, LP 133-144 and G207-9) over a whole observational season for each target.Preliminary results are presented for GD 154. An additional frequency at 213.6 c/d has been identified in an early data set. An alternative interpretation on all available data comparing with a pure multiperiodic pulsation is in progress. Sign of a chaotic behaviour is going to be investigated.
- Publication:
-
Communications in Asteroseismology
- Pub Date:
- June 2008
- Bibcode:
- 2008CoAst.154...59P