2006A&A...450.1061V

Query : 2006A&A...450.1061V

2006A&A...450.1061V - Astronomy and Astrophysics, volume 450, 1061-1070 (2006/5-2)

Discovery of seven ZZ Ceti stars using a new photometric selection method.

VOSS B., KOESTER D., OSTENSEN R., KEPLER S.O., NAPIWOTZKI R., HOMEIER D. and REIMERS D.

Abstract (from CDS):

We report the detection of non-radial g-mode oscillations in seven relatively bright (14.4<B<16.5) DA white dwarf stars from time-series photometry collected at the Nordic Optical Telescope (NOT) at Roque de Los Muchachos Observatory, Spain. The candidate variable stars were selected from preparatory photometric observations of objects from the Hamburg Quasar Survey (HQS) and from spectroscopy of stars from the Villanova (WD) catalogue. The selection of ZZ Ceti candidate stars from photometric data proved nearly as successful as the more common spectroscopic selection method. The effective temperatures that we derive from both methods are consistent with a pure ZZ Ceti instability strip.

Abstract Copyright: ∼

Journal keyword(s): stars: white dwarfs - stars: oscillations - stars: variables: general

CDS comments: Table 1 SDSS 1612+555 is a probable misprint for SBSS 1612+555.

Simbad objects: 14

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Number of rows : 14
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 HS 0952+1816 WD* 09 55 10.6931618976 +18 02 16.200422448           DA4.3 14 0
2 EC 11266-2217 WD* 11 29 11.5200550656 -22 33 43.809938136   16.48 16.17 16.1   DA4.1 22 0
3 PG 1149+058 WD* 11 51 54.2067404280 +05 28 39.584467236   15.14   15.07   DA4.4 45 0
4 PB 4304 WD* 12 52 15.1751982192 +04 10 42.945758436           DA4.1 21 0
5 PG 1300-099 WD* 13 03 16.6697182752 -10 09 11.325274668   16.25   16.1   DA3.1 15 0
6 EC 13429-2342 WD* 13 45 46.4113131648 -23 57 10.121884524   16.13 16.00 15.8   DA4.5 21 0
7 CBS 391 WD* 14 43 17.5466574264 +32 06 57.405805884   16       DA3.9 14 0
8 HS 1531+7436 WD* 15 30 35.1380708136 +74 26 06.959485932   16.57 16.36     DA3.8 12 0
9 HS 1544+3800 WD* 15 46 05.4389411688 +37 51 27.498956076   14.57 14.46 14.76   DA3.6 12 0
10 HS 1556+1634 WD* 15 58 40.2209544456 +16 25 56.038535328   15.8       DA4.1 10 0
11 SBSS 1612+554 WD* 16 13 16.6332055200 +55 21 25.963077960   16.23 15.86 16.16   DA4.2 19 0
12 HS 1625+1231 WD* 16 28 13.3374112416 +12 24 52.713454824   16.1       DA4.2 27 0
13 HS 1824+6000 WD* 18 24 44.2871802864 +60 01 59.396214900   15.7       DA4.3 13 0
14 V* PY Vul WD* 19 37 13.7502269447 +27 43 18.733503670   13.14   12.7   DA4.0 128 0

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