Table 5.
Atmospheric parameters Teff, log g (cgs units), [H/C], and [He/C] for 26 warm DQ white dwarfs.
| SDSSJ | Teff/K | log g | M/M⊙ | Vr [km s−1] | [H/C] | [He/C] | q(cvz) | q(H) | q(He) |
|---|---|---|---|---|---|---|---|---|---|
| 001908.63+184706.0 | 11000 | 8.686 | 1.01 | 110 | <−2.30 | < 1.70 | −7.57 | <−11.82 | <−6.44 |
| 023633.74+250348.9 | 14611 | 8.777 | 1.07 | 130 | −2.00 | < 1.00 | −8.30 | −11.61 | <−7.15 |
| 080708.49+194950.0 | 14593 | 8.847 | 1.11 | 220 | −1.80 | < 0.00 | −8.62 | −11.21 | <−8.05 |
| 085626.94+451337.0 | 9353 | 8.509 | 0.91 | <−0.60 | 2.90 | −6.75 | <−10.46 | −5.46 | |
| 085914.63+325712.2 | 10300 | 8.605 | 0.97 | 120 | <−2.30 | 2.20 | −7.20 | <−11.92 | −5.99 |
| 091922.26+023604.4 | 11500 | 8.702 | 1.02 | 170 | −1.70 | 2.20 | −7.50 | −11.61 | −6.22 |
| 093638.04+060709.6 | 12166 | 8.816 | 1.09 | 100 | <−1.80 | < 2.00 | −7.87 | <−11.89 | <−6.62 |
| 095837.00+585303.0 | 15444 | 8.951 | 1.16 | 100 | −0.70 | < 0.00 | −9.12 | −10.63 | <−8.54 |
| 104906.61+165923.7 | 13590 | 8.995 | 1.19 | 130 | −1.25 | < 1.25 | −8.60 | −11.37 | <−7.50 |
| 105817.66+284609.3 | 10500 | 8.696 | 1.02 | 120 | <−2.30 | 2.20 | −7.42 | <−12.14 | −6.23 |
| 110058.04+175807.0 | 12631 | 8.756 | 1.05 | 100 | −2.80 | < 1.20 | −8.01 | −11.30 | <−6.90 |
| 114006.29+073529.9 | 11400 | 8.738 | 1.04 | 120 | −1.00 | 2.20 | −7.58 | −10.99 | −6.33 |
| 114059.88+182401.9 | 10500 | 8.620 | 0.98 | 120 | <−2.30 | 2.00 | −7.30 | <−11.83 | −6.12 |
| 114851.68−012612.7 | 10500 | 8.610 | 0.97 | 130 | <−2.30 | 2.20 | −7.22 | <−11.94 | −6.00 |
| 120331.77+645059.6 | 12400 | 8.700 | 1.02 | 100 | −2.00 | < 1.00 | −7.91 | −11.24 | <−6.87 |
| 121510.66+470010.3 | 13940 | 8.957 | 1.16 | 100 | −1.00 | < 1.00 | −8.64 | −10.96 | <−7.59 |
| 133151.38+372754.8 | 16741 | 9.028 | 1.16 | 240 | −1.40 | <−0.40 | −9.07 | −11.20 | <−8.82 |
| 133221.56+235502.2 | 15131 | 8.779 | 1.07 | 100 | −1.30 | < 0.60 | −8.53 | −10.87 | <−7.53 |
| 133940.50+503613.5 | 11680 | 8.621 | 0.98 | 160 | <−1.80 | 2.00 | −7.40 | <−11.41 | −6.12 |
| 134124.28+034628.7 | 13978 | 8.834 | 1.10 | 170 | −2.20 | < 1.20 | −8.32 | −10.80 | <−7.16 |
| 143437.82+225859.5 | 15750 | 8.828 | 1.09 | 130 | −1.70 | < 0.00 | −8.70 | −11.19 | <−8.07 |
| 143534.01+531815.1 | 15658 | 8.900 | 1.13 | 100 | −1.25 | < 0.75 | −8.78 | −11.16 | <−7.71 |
| 144854.80+051903.5 | 15966 | 8.943 | 1.16 | 100 | −1.10 | <−0.30 | −8.95 | −10.78 | <−8.60 |
| 162205.12+184956.7 | 16693 | 9.129 | 1.16 | 120 | −1.60 | < 0.10 | −9.37 | −11.80 | <−8.73 |
| 162236.13+300454.5 | 16131 | 8.934 | 1.15 | 100 | −1.40 | <−0.30 | −8.88 | −11.01 | <−8.52 |
| 172856.22+555822.8 | 14772 | 8.869 | 1.12 | 100 | −1.50 | <−0.30 | −8.64 | −10.88 | <−8.33 |
| Average | 8.801 | 1.07 | 128 | −11.31 | −7.22 | ||||
| SD | 0.152 | 0.08 | 38 | 0.46 | 1.02 | ||||
Notes. q(cvz) is the fractional mass log(Mcvz/M) in the convection zone, q(H) and q(He) are the logarithmic fractional masses of hydrogen and helium. The two last rows show the average and standard deviation for the H and He masses, assuming that the upper limits are really present. We also list the individual masses and spectroscopic radial velocities (Vr), which are not corrected for gravitational redshifts.
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