Table B.1
Literature values for N(OH+) together with the (estimated) N(Htot) column densities and the corresponding ζp, both the values reported originally and the values adapted here to follow Eq. (1).
| Target | Scaled N(OH+) | N(Htot) | Original ζp | Adapted ζp |
|---|---|---|---|---|
| × 1013 (cm−2) | × 1021 (cm−2) | × 10−16 (s−1) | × 10−16 (s−1) | |
| Porras et al. (2014) | ||||
| BD-14 5037 | 0.58 | 0.22 | 1.6 | 17.3 |
| 1.9 | 2.3 | 0.5 | 5.4 | |
| HD 149404 | 0.41 | 1.2 | 0.2 | 2.2 |
| 0.87a | 0.095a | 5.5a | 59.5a | |
| 1.1 | 0.54 | 1.2 | 13.0 | |
| 0.65 | 0.30 | 1.3 | 14.1 | |
| HD 154368 | 0.37a | 0.067a | 3.3a | 35.7a |
| 0.91 | 1.1 | 0.5 | 5.4 | |
| 0.35 | 0.16 | 1.3 | 14.1 | |
| HD 183143 | 2.4 | 0.75 | 1.9 | 20.6 |
| 0.61a | 0.060a | 6.1a | 66.0a | |
| 0.67 | 0.25 | 1.6 | 17.3 | |
| Zhao et al. (2015) | ||||
| CD-32 4348 | 6.3(3) | 5.7 | 0.8 | 7.2(3) |
| HD 63804 | 7.7(3) | 4.5 | 1.2 | 11.1(4) |
| HD 78344 | 4.0(4) | 4.0 | 0.8 | 6.6(7) |
| HD 80077 | 4.2(6) | 3.7 | 0.9 | 7.3(1.0) |
Notes. The OH+ column densities reported by Porras et al. (2014) were derived from a single electronic transition (λ3584) while those of Zhao et al. (2015) result from a line fit through multiple OH+ absorption lines, as in this work. These values have been scaled according to the recently updated line oscillator strengths provided by Hodges et al. (2018). Numbers enclosed in parentheses denote the uncertainty of the last digit(s); for example, 1.2(3) ≡ 1.2 ± 0.3, whereas 4.3(2.1) ≡ 4.3 ± 2.1. (a) Values reported for these components correspond to very weak OH+ absorption components with no corresponding CH+ detections. The associated N(Htot) is likely underestimated leading to overestimated values for ζp.
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