SIMBAD references

2011MNRAS.415.1322P - Mon. Not. R. Astron. Soc., 415, 1322-1333 (2011/August-1)

The cool ZZ Ceti star PG 2303+243: observations and analysis of variability in 2004.

PAKSTIENE E., SOLHEIM J.-E., HANDLER G., REED M., BOGNAR Zs., RODLER F., PAPARO M., ZDANAVICIUS J., STEININGER B. and WOLF G.

Abstract (from CDS):

PG 2303+243 is a cool DA variable (also called ZZ Ceti) star with a rich pulsation spectrum and variable amplitudes. A mini-campaign involving six observatories yielded time-resolved photometric measurements of PG 2303+243 during the period 2004 September 5-20. A duty cycle of 35 per cent was achieved. We detected 24 possible independent frequencies, their amplitudes and phases for future mode identification. We confirm the occurrence of short-term amplitude and frequency variations. Our analysis suggests an l= 1 rotational splitting around 8.4 µHz, implying a rotation period of 16.5 h.

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): stars: individual: PG 2303+243 - stars: variables: general - white dwarfs

Simbad objects: 5

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