2011MNRAS.415.1322P

Query : 2011MNRAS.415.1322P

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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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* ZZ Cet WD* 01 36 13.6153974672 -11 20 32.632874601   14.328 14.16 14.4   DA4.0 307 0
2 V* RY LMi WD* 09 24 15.2482279632 +35 16 51.401570556   15.72   15.99   DA4 274 0
3 Ton 1559 WD* 13 09 57.6766028952 +35 09 47.187935136   15.51   15.2   DA4.4 138 0
4 V* DN Dra WD* 16 48 25.6318375106 +59 03 22.658985521   12.34 12.17 12.44   DA4.0 228 0
5 PG 2303+243 WD* 23 06 17.6909597616 +24 32 07.677555468   15.4   15.2   DA4.3 60 0

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