Table 2
High ion fit results. Column-densities are in cm-2 and velocities in km s-1.
| STAR | N(CIV) | V(CIV) | N(SiIV) | V(SiIV) | N(NV) | V(NV) | N(OVI) | V(OVI) | |||
|
|
|||||||||||
| WD2257-073 | 1.0 ± 0.4E13∗ | –12 ± 1 | |||||||||
| 2.2 ± ,1.3 E13∗∗ | 50 ± 1 | 1.1 ± 0.5E12 | 54 ± 2 | 1.2 ± 0.3E13 | 41 ± 2 | 3.6 ± 1E131 | 25 ± 1.5 | ||||
| WD1942+499 | 1.6E137 | –7 ± 1 | 2.7 ± 0.3E139 | 2 ± 1 | 7.4 ± 4.5E128 | 5 ± 3 | 9. ± 3.E122 | 3 ± 2 | |||
| WD1040+492 | 7.5 ± 4.0E125 | –27 ± 5 | 2.4 ± 0.6E133 | –11.5 ± 7 | |||||||
| 1.1 ± 0.5E136 | 34 ± 4 | 1.6 ± 1.1E124 | 33.5 ± 1.5 | 3 ± 2E12 | 42 ± 5 | 3.5 ± 1.5E133 | 42 ± 2.5 | ||||
Notes. Constraints on the effective temperature from line fitting tests: (*) T = 3.4 ± 0.4E4 K; (**) T = 9 ± 3.5E3 K; (1) T ≤ 9000 K. The upper limit on the column density corresponds to the assumption that T ≥ 3000 K; (2) T ≤ 45000 K. The upper limit on the column corresponds to the assumption that T ≥ 3000 K; (3) T ≥ 500 000 K; (4) T ≥ 60 000K; (5) T ≥ 35 000 K; (6) T ≥ 40 000 K; (7) T = 4.0 ± 2.0E4 K; (8) T = 2.4 ± 1.6E5 K; (9) T = 2.8 ± 0.3E5 K.
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