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Table 1

Targets, observations and upper limits to the p-modes.

Name(s) B T eff log g Ref. T 0 1 length Δt2 Nyquist A1lim3 A2lim4
mag [K] [cgs] [days] [s] [ms] [Hz] (×  104) (×  104)
WD 1204–136 EC 12043–1337 15.7 11 180a 8.24a 1 20.00474258 914 46 10.87 10.9 10.1
WD J1338–0023 WD 1335–001 17.3 11 980b 7.94b 1 20.95120770 3121 441 1.13 29.2 –
WD 1116+0265 GD 133 14.8 12 090 8.06 1 15.95335902 4124 37 13.51 3.6 3.4
WD 1425–8115 L 19-2 14.0 12 100 8.21 2 11.25617640 1870 35 14.29 3.5 2.1
WD 1935+2765 G 185-32 13.1 12 130 8.05 2 06.42004750 1170 11 45.45 10.9 6.0
07.40988878 1867 11 45.45 7.8 2.7
18.28107923 1850 11 45.45 5.9 3.6
HS 1443+2934 14.5 12 400 8.1 3 11.22092258 2293 35 14.29 3.6 2.5
WD J1105+0016 GD 127 15.4 12 850 8.26 4 17.01330012 1598 51 9.80 6.8 6.9
HS 1253+1033 14.4 13 040c 7.85c 5 16.19138485 2490 57 8.77 13.4 13.46
WD 1827-106 G 155-19 14.4 13 300 7.63 1 16.22905171 1701 36 13.89 5.8 5.2

Notes. 

(1)

JD of the 1st datum – 2453491.5 (2453491.5 = 1st of May 2005, 0 h UT).

(2)

Time resolution.

(3)

Relative amplitude of the highest peak in the Fourier spectrum for  0.1 Hz < f < 2 Hz.

(4)

Relative amplitude of the highest peak in the Fourier spectrum for  2 Hz < f < Nyquist.

(5)

ZZ Ceti pulsator.

(6)

Excluding the spurious peak at  ~3.3 Hz (see Sect. 3).

(a)

Teff = 11   110 and log g = 8.05 from Koester et al. (2001).

(b)

Teff = 11   650 and log g = 8.08 from Mukadam et al. (2004).

(c)

Teff = 12   600 and log g = 8.5 from Silvotti et al. (2005).

References. Gianninas et al. (2005); 2: Bergeron et al. (2004); 3: Silvotti et al. (2005); 4: Mukadam et al. (2004); 5: Gianninas et al. (2007).

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