Table 3
Best-fit parameters of the C3 models in 27 sightlines.
| Sightline(a) | This work(b) | Literature(c) | ||||||
|---|---|---|---|---|---|---|---|---|
| Tlow | Thigh | N | FWHM | voff | T | N | Source | |
| (K) | (K) | (1012 cm−2) | (km s−1) | (km s−1) | (K) | (1012 cm−2) | ||
| HD 23180(d) |  |
 |
 |
 |
 |
127.3 ± 3.9 | 1.27 ± 0.13 | A03 |
| HD 24398(d) |  |
 |
 |
 |
 |
132.0 ± 10.3 | 1.30 ± 0.35 | A03 |
| 1.00 | O03 | |||||||
| 50.0 | 1.37 | R02 | ||||||
| 1.00 | M01 | |||||||
| HD 27778 |  |
 |
 |
 |
 |
1.20 ± 0.30 | O03 | |
| HD 45314 |  |
 |
 |
 |
 |
|||
| HD 61827 (Comp.1) |  |
 |
 |
 |
 |
|||
| HD 61827 (Comp.2) |  |
 |
 |
 |
 |
|||
| HD 63804 |  |
 |
 |
 |
 |
|||
| HD 73882(d) |  |
 |
 |
 |
 |
|||
| HD 80558(d) |  |
1000.0 |  |
 |
 |
|||
| HD 144217(d) |  |
100.0 |  |
 |
 |
<0.38 | G02 | |
| HD 147683 |  |
 |
 |
 |
 |
|||
| HD 147888 |  |
 |
 |
 |
 |
|||
| HD 147889 |  |
 |
 |
 |
 |
tentative detection | H95 | |
| HD 147933 |  |
 |
 |
 |
 |
|||
| HD 148184 |  |
 |
 |
 |
 |
3.10 ± 0.50 | G02 | |
| HD 149404 (Comp.1) |  |
 |
 |
 |
 |
|||
| HD 149404 (Comp.2) |  |
 |
 |
 |
 |
|||
| HD 149757 |  |
 |
 |
 |
 |
1.60 ± 0.00 | O03 | |
| 2.01 ± 0.20 | G02 | |||||||
| 1.83 ± 0.00 | R02 | |||||||
| 1.60 ± 0.00 | M01 | |||||||
| HD 152248(d) |  |
 |
 |
 |
 |
|||
| HD 154043(d) |  |
 |
 |
 |
 |
|||
| HD 154368 |  |
 |
 |
 |
 |
|||
| HD 161056 (Comp.1) |  |
 |
 |
 |
 |
|||
| HD 161056 (Comp.2) |  |
100.0 |  |
 |
 |
|||
| HD 169454 |  |
1000.0 |  |
 |
 |
22.4 ± 1.0 | 6.61 ± 0.19 | S14 |
| 23.4 ± 1.4 | 2.24 ± 0.66 | A03 | ||||||
| 4.30 ± 0.50 | O03 | |||||||
| HD 179406 |  |
 |
 |
 |
 |
1.30 ± 0.70 | O03 | |
| 2.90 | R02 | |||||||
| 2.00 | M01 | |||||||
| HD 185859(d) |  |
 |
 |
 |
 |
|||
| HD 186745 |  |
 |
 |
 |
 |
|||
| HD 186841 (Comp.1) |  |
 |
 |
 |
 |
|||
| HD 186841 (Comp.2) |  |
 |
 |
 |
 |
|||
| HD 203532 |  |
 |
 |
 |
 |
|||
| HD 210121 |  |
 |
 |
 |
 |
1.90 ± 0.50 | O03 | |
| 4.56 | R02 | |||||||
Notes. (a)Best-fit results are listed in separate entries for sightline harbouring multiple velocity components. (b)The Gaussian broadening factor FWHM has a lower boundary of 3.00 km s−1 to reflect instrumental profile; the fitting boundaries of the excitation temperature for the higher J-levels Thigh are between 100 and 1000 K; the velocity offset voff is relative to the barycentric frame. (c)Column densities from G02 and R02 have been converted to f000 = 0.016. The excitation temperature for the lower J-levels is listed if the reference uses double-temperature model. (d)Tentative detection, no individual transition exceeds the 3σ detection limit.
References. H95: Haffner & Meyer (1995); M01: Maier et al. (2001); G02: Galazutdinov et al. (2002); R02: Roueff et al. (2002); A03: Ádámkovics et al. (2003); O03: Oka et al. (2003); S14: Schmidt etal. (2014).
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