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Table 1

Observing log for our survey of cool DQ white dwarfs.

Object RA Dec M V Observing date Exp time (s) R = λ/▵ λ Instrument

GJ1037 01 18 00.086 +16 10 20.63 13.85 15.11.2008 3300 780 VLT/FORS1
GJ151 03 44 34.860 +18 26 09.77 15.2 16.11.2008 9600 780 VLT/FORS1
GJ3306 04 37 47.42 −08 49 10.7 14.1 16.11.2008 4800 780 VLT/FORS1
WD0935-371A 09 37 00.0 −37 21 33 14.85 15.11.2008 7200 780 VLT/FORS1
GJ893.1 23 14 25.191 −06 32 47.84 15.42 26.−27.8.2009 9000 780 VLT/FORS
GJ3431B 07 10 14.332 +37 40 19.51 15.94 10.2.2010 8400 70 NOT/ALFOSC
GJ1117 08 59 14.714 +32 57 12.11 15.18 11.2.2010 3600 70 NOT/ALFOSC
WD0913+103 09 16 02.69 +10 11 10.7 15.77 10.−11.02.2010 9600 70 NOT/ALFOSC
GJ3569 09 50 17.139 +53 15 14.95 15.3 10.−11.02.2010 7200 70 NOT/ALFOSC
EGGR78 11 18 15.12 −03 14 05.4 15.39 10.2.2010 3600 70 NOT/ALFOSC
WD1235+422 12 37 52.240 +41 56 24.79 16.8 10.−11.2.2010 3600 70 NOT/ALFOSC
21.5.2011 7200 70 NOT/ALFOSC
20.3.2011 12 000 70 NOT/ALFOSC

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