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Table 4

Measured equivalent widths and curve-of-growth corrected column densities for CN(0, 0) band at each epoch.

Epoch W (mÅ) log N(R0) N(R0) /N(R1) T 01

(days) R 0 R 1 P 1 (cm-2) (K)

+6 Σ 87 ± 6 36 ± 4 18 ± 4 13.44 ± 0.06
1 70 ± 5 29 ± 3 15 ± 3 13.37 ± 0.04 2.14 2.9 ± 0.4
+11 Σ 79 ± 6 34 ± 4 17 ± 4 13.37 ± 0.06
1 63 ± 4 27 ± 3 14 ± 3 13.30 ± 0.04 1.95 3.0 ± 0.5
+17 Σ 82 ± 8 36 ± 7 14 ± 7 13.40 ± 0.08
1 66 ± 6 29 ± 6 11 ± 5 13.33 ± 0.06 1.95 2.8 ± 0.6

Notes. Two velocity components with identical width of 0.11 Å are assumed to contribute to the total absorption profile. This corresponds to an intrinsic FWHM of 5.7 km s -1 (for resolution of 6.3 km s-1) and hence a b of 3.4 km s-1. The equivalent width and column density are given for the total line profile and the strongest velocity component, respectively. The average CN excitation temperature derived from the R0/R1 and R0/P1 ratios and the R0/R1 column density ratios are given for the strongest velocity component only.

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