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Table 1

Detailed optical spectroscopic observations of DQ Vel. φo is the orbital phase calculated using the Michalska et al. (2010) ephemeris (see Sect. 3.3).

Observatory Telescope/Instrument UT date BJD-2 450 000 φo Exp time(s) S/N
La Silla Euler/CORALIE 2008-04-05 4562.5807 0.8061 2500 53
La Silla Euler/CORALIE 2008-04-05 4562.6105 0.8110 2500 57
La Silla Euler/CORALIE 2008-04-05 4562.6403 0.8159 2500 55
La Silla Euler/CORALIE 2008-04-07 4564.6168 0.1408 2500 60
La Silla Euler/CORALIE 2008-04-07 4564.6466 0.1457 2500 55
La Silla Euler/CORALIE 2008-04-08 4564.6764 0.1506 2500 56
La Silla Euler/CORALIE 2008-04-08 4565.5829 0.2996 2500 63
La Silla Euler/CORALIE 2008-04-08 4565.6127 0.3045 2500 63
La Silla Euler/CORALIE 2008-04-08 4565.6425 0.3094 2500 67
La Silla Euler/CORALIE 2008-05-22 4609.5451 0.5263 2500 58
La Silla Euler/CORALIE 2008-05-22 4609.5750 0.5312 2500 64
La Silla Euler/CORALIE 2008-05-22 4609.6258 0.5395 2500 57
La Silla Euler/CORALIE 2008-05-23 4610.5343 0.6889 2500 57
La Silla Euler/CORALIE 2008-05-23 4610.5641 0.6938 2500 58
La Silla Euler/CORALIE 2008-05-23 4610.5940 0.6987 2500 55
La Silla Euler/CORALIE 2008-05-24 4611.5221 0.8512 2500 49
La Silla Euler/CORALIE 2008-05-24 4611.6078 0.8653 2500 46
La Silla Euler/CORALIE 2008-05-24 4611.6377 0.8702 2500 42
La Silla Euler/CORALIE 2008-05-25 4611.6675 0.8751 2500 61
La Silla Euler/CORALIE 2008-05-25 4612.5771 0.0247 2500 34
La Silla Euler/CORALIE 2008-05-25 4612.6069 0.0296 2500 32
La Silla Euler/CORALIE 2008-05-25 4612.6367 0.0345 2500 31
La Silla Euler/CORALIE 2008-12-19 4819.7745 0.0843 1500 42
La Silla Euler/CORALIE 2008-12-22 4822.7697 0.5767 1500 48
La Silla Euler/CORALIE 2009-04-15 4936.6295 0.2932 2500 62
La Silla Euler/CORALIE 2009-04-15 4936.6594 0.2981 2500 60
La Silla Euler/CORALIE 2009-04-15 4936.6892 0.3030 2500 59
La Silla Euler/CORALIE 2009-04-16 4937.6087 0.4542 2500 49
La Silla Euler/CORALIE 2009-04-16 4937.6386 0.4591 2500 55
La Silla Euler/CORALIE 2009-04-16 4937.6684 0.4640 2500 53
La Silla Euler/CORALIE 2009-04-17 4938.6259 0.6214 2500 57
La Silla Euler/CORALIE 2009-04-17 4938.6701 0.6287 2500 54
La Silla Euler/CORALIE 2009-04-17 4938.6999 0.6336 2500 49
La Silla Euler/CORALIE 2009-05-17 4968.5220 0.5358 2400 50
La Silla Euler/CORALIE 2009-05-17 4968.5507 0.5405 2400 47
La Silla Euler/CORALIE 2009-05-17 4969.5085 0.6980 2500 53
La Silla Euler/CORALIE 2009-05-18 4969.5378 0.7028 2400 55
La Silla Euler/CORALIE 2009-05-18 4970.4967 0.8604 2400 49
La Silla Euler/CORALIE 2009-05-19 4970.5253 0.8651 2400 44
La Silla MPI/FEROS 2010-03-28 5283.5531 0.3214 1500 67
La Silla MPI/FEROS 2010-03-30 5285.5668 0.6524 1500 62
Las Campanas Du Pont/echelle 2008-06-13 4631.4735 0.1309 900 27
Las Campanas Du Pont/echelle 2008-06-13 4631.4854 0.1329 900 46
Las Campanas Du Pont/echelle 2009-05-14 4966.4639 0.1975 900 60
Las Campanas Du Pont/echelle 2009-05-15 4966.5077 0.2047 900 49
Las Campanas Du Pont/echelle 2009-05-16 4967.5020 0.3681 1200 60

Notes.The signal-to-noise ratio was measured using the 5000–5800 Å range at the continuum level.

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