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Table 1
Equivalent widths of the circumstellar components of the C2 Phillips System 
.
| λobs | λlab | Band | Branch | J′′ | f(J′,J′′) | E′′ | EW | σ | FWHM | Velocity | Note |
| (Å) | (Å) | (cm-1) | (mÅ) | (mÅ) | (mÅ) | (km s-1) | |||||
|
|
|||||||||||
| 6911.25 | 6912.307 | (4−0) | R | 10 | 7.75E-05 | 199.138 | 23.7 | 1.5 | 0.22 | −45.9 | poor |
| 6911.66 | 6912.704 | (4−0) | R | 0 | 2.71E-04 | 0.000 | 17.6 | 1.5 | 0.18 | −45.2 | poor |
| 6914.29 | 6915.348 | (4−0) | R | 12 | 7.59E-05 | 282.364 | 6.9 | 1.2 | 0.21 | −46.0 | poor |
| 6916.84 | 6917.913 | (4−0) | P | 2 | 2.71E-05 | 10.866 | 8.2 | 1.1 | 0.22 | −46.6 | poor |
| 6921.51 | 6922.694 | (4−0) | P | 4 | 4.51E-05 | 36.220 | 16.2 | 0.5 | 0.21 | −51.2 | good |
| 6922.40 | 6923.557 | (4−0) | Q | 8 | 1.35E-04 | 130.364 | 11.1 | 1.5 | 0.20 | −49.9 | poor, telluric |
| 6927.38 | 6928.504 | (4−0) | Q | 10 | 1.35E-04 | 199.138 | 23.3 | 2.0 | 0.23 | −48.5 | bad, blend R(6) |
| 7713.33 | 7714.575 | (3−0) | R | 6 | 2.00E-04 | 76.055 | 59.2 | 8.0 | 0.29 | −48.4 | bad |
| 7713.70 | 7714.944 | (3−0) | R | 4 | 2.23E-04 | 36.220 | 44.0 | 1.8 | 0.25 | −48.2 | bad |
| 7714.20 | 7715.415 | (3−0) | R | 8 | 1.96E-04 | 130.364 | 34.0 | 6.0 | 0.27 | −47.1 | bad |
| 7715.29 | 7716.528 | (3−0) | R | 2 | 2.67E-04 | 10.866 | 33.0 | 1.0 | 0.23 | −48.1 | good |
| 7718.05 | 7719.329 | (3−0) | R | 0 | 6.67E-04 | 0.000 | 39.2 | 2.5 | 0.25 | −49.9 | poor |
| 7719.50 | 7720.748 | (3−0) | R | 12 | 1.87E-04 | 282.364 | 13.0 | 1.5 | 0.22 | −48.6 | poor, P-Cyg ? |
| 7720.85 | 7722.095 | (3−0) | Q | 2 | 3.34E-04 | 10.866 | 35.5 | 0.6 | 0.24 | −48.3 | good |
| 7722.98 | 7724.219 | (3−0) | Q | 4 | 3.34E-04 | 36.220 | 40.7 | 1.8 | 0.26 | −47.9 | poor |
| 7724.55 | 7725.819 | (3−0) | P | 2 | 6.65E-05 | 10.866 | 28.5 | 3.5 | 0.35 | −49.1 | bad |
| 7729.68 | 7730.963 | (3−0) | R | 16 | 1.82E-04 | 492.107 | 6.3 | 2.0 | 0.23 | −49.7 | bad |
| 7730.40 | 7731.666 | (3−0) | P | 4 | 1.11E-04 | 36.220 | 22.1 | 0.5 | 0.25 | −49.1 | good |
| 7730.89 | 7732.117 | (3−0) | Q | 8 | 3.33E-04 | 130.364 | 27.7 | 1.5 | 0.23 | −47.5 | poor |
| 7736.63 | 7737.904 | (3−0) | Q | 10 | 3.33E-04 | 199.138 | 34.0 | 1.8 | 0.26 | −49.2 | poor, blend |
| 7737.48 | 7738.737 | (3−0) | P | 6 | 1.28E-04 | 76.055 | 19.2 | 0.6 | 0.23 | −48.5 | good |
| 7743.60 | 7744.900 | (3−0) | Q | 12 | 3.33E-04 | 282.364 | 20.6 | 0.7 | 0.26 | −50.2 | bad |
| 7755.32 | 7756.582 | (3−0) | P | 10 | 1.42E-04 | 199.138 | 10.5 | 1.5 | 0.21 | −48.9 | poor |
| 7761.38 | 7762.623 | (3−0) | Q | 16 | 3.32E-04 | 492.107 | 11.0 | 0.5 | 0.19 | −48.2 | good |
| 7778.14 | 7779.428 | (3−0) | P | 14 | 1.48E-04 | 380.026 | 3.0 | 1.0 | 0.12 | −49.5 | bad |
| 8752.14 | 8753.578 | (2−0) | R | 10 | 4.12E-04 | 199.138 | 48.5 | 2.3 | 0.27 | −49.3 | bad |
| 8752.52 | 8753.945 | (2−0) | R | 2 | 5.76E-04 | 10.866 | 40.0 | 1.7 | 0.20 | −48.9 | poor |
| 8756.25 | 8757.681 | (2−0) | R | 0 | 1.44E-03 | 0.000 | 53.0 | 2.5 | 0.26 | −49.0 | poor |
| 8759.75 | 8761.194 | (2−0) | Q | 2 | 7.20E-04 | 10.866 | 41.6 | 4.5 | 0.20 | −49.3 | poor |
| 8760.72 | 8762.144 | (2−0) | R | 14 | 3.97E-04 | 380.026 | 24.6 | 1.6 | 0.20 | −48.8 | poor, P-Cyg |
| 8762.30 | 8763.751 | (2−0) | Q | 4 | 7.20E-04 | 36.220 | 51.0 | 2.6 | 0.22 | −49.6 | poor |
| 8764.58 | 8766.026 | (2−0) | P | 2 | 1.44E-04 | 10.866 | 28.7 | 1.7 | 0.21 | −49.4 | good |
| 8766.30 | 8767.759 | (2−0) | Q | 6 | 7.19E-04 | 76.055 | 55.0 | 1.7 | 0.23 | −50.0 | poor, em ? |
| 8767.22 | 8768.628 | (2−0) | R | 16 | 3.92E-04 | 492.107 | 28.0 | 1.6 | 0.24 | −48.2 | good |
| 8821.27 | 8822.725 | (2−0) | Q | 18 | 7.15E-04 | 618.584 | 23.6 | 1.6 | 0.20 | −49.5 | good |
| 8831.21 | 8832.679 | (2−0) | P | 14 | 3.20E-04 | 380.026 | 14.2 | 1.7 | 0.24 | −49.8 | bad |
| 8835.66 | 8837.119 | (2−0) | Q | 20 | 7.14E-04 | 759.436 | 12.8 | 1.5 | 0.21 | −49.5 | poor |
| 8847.62 | 8849.072 | (2−0) | P | 16 | 3.24E-04 | 492.107 | 15.3 | 1.4 | 0.19 | −49.2 | good |
| 8851.60 | 8853.041 | (2−0) | Q | 22 | 7.12E-04 | 914.635 | 11.0 | 1.8 | 0.24 | −48.8 | good |
| 10135.149 | (1−0) | R | 4 | 7.94E-04 | 36.220 | 78.9 | 5.8 | 0.27 | bad | ||
| 10135.923 | (1−0) | R | 10 | 6.81E-04 | 199.138 | 42.1 | 5.2 | 0.22 | poor | ||
| 10138.540 | (1−0) | R | 2 | 9.53E-04 | 10.866 | 59.6 | 6.2 | 0.28 | poor, P-Cyg | ||
| 10139.805 | (1−0) | R | 12 | 6.67E-04 | 282.364 | 40.6 | 5.6 | 0.23 | poor | ||
| 10143.724 | (1−0) | R | 0 | 2.38E-03 | 0.000 | 52.8 | 5.5 | 0.25 | P-Cyg | ||
| 10145.505 | (1−0) | R | 14 | 6.56E-04 | 380.026 | 101.0 | 6.7 | 0.35 | bad | ||
| 10148.352 | (1−0) | Q | 2 | 1.19E-03 | 10.866 | 59.5 | 5.8 | 0.25 | poor | ||
| 10151.523 | (1−0) | Q | 4 | 1.19E-03 | 36.220 | 61.0 | 6.0 | 0.33 | poor | ||
| 10153.031 | (1−0) | R | 16 | 6.49E-04 | 492.107 | 35.8 | 5.7 | 0.25 | poor, P-Cyg | ||
| 10154.897 | (1−0) | P | 2 | 2.38E-04 | 10.866 | 42.0 | 4.9 | 0.22 | poor | ||
| 10156.515 | (1−0) | Q | 6 | 1.19E-03 | 76.055 | 66.0 | 5.7 | 0.25 | P-Cyg | ||
| 10162.398 | (1−0) | R | 18 | 6.42E-04 | 618.584 | 22.4 | 7.6 | 0.28 | bad, P-Cyg | ||
| 10163.323 | (1−0) | Q | 8 | 1.19E-03 | 130.364 | 68.4 | 6.6 | 0.31 | poor, P-Cyg | ||
| 10164.763 | (1−0) | P | 4 | 3.96E-04 | 36.220 | 57.7 | 6.7 | 0.32 | poor, P-Cyg | ||
| 10173.606 | (1−0) | R | 20 | 6.37E-04 | 759.436 | 25.3 | 6.0 | 0.30 | poor, P-Cyg | ||
| 10176.252 | (1−0) | P | 6 | 4.56E-04 | 76.055 | 38.0 | 5.7 | 0.24 | bad | ||
| 10182.434 | (1−0) | Q | 12 | 1.19E-03 | 282.364 | 48.8 | 6.5 | 0.27 | P-Cyg | ||
| 10186.668 | (1−0) | R | 22 | 6.32E-04 | 914.635 | 9.3 | 4.8 | 0.24 | bad | ||
| 10189.693 | (1−0) | P | 8 | 4.88E-04 | 130.364 | 38.9 | 5.8 | 0.25 | poor | ||
| 10194.755 | (1−0) | Q | 14 | 1.18E-03 | 380.026 | 54.4 | 6.0 | 0.32 | poor, P-Cyg | ||
| 10204.998 | (1−0) | P | 10 | 5.07E-04 | 199.138 | 22.2 | 9.0 | 0.33 | poor, P-Cyg | ||
| 10208.931 | (1−0) | Q | 16 | 1.18E-03 | 492.107 | 58.6 | 8.5 | 0.42 | bad | ||
| 10218.289 | (1−0) | R | 26 | 6.24E-04 | 1267.958 | 9.5 | 4.5 | 0.13 | bad | ||
| 10222.171 | (1−0) | P | 12 | 5.20E-04 | 282.364 | 34.4 | 6.6 | 0.25 | P-Cyg | ||
| 10224.982 | (1−0) | Q | 18 | 1.18E-03 | 618.584 | 34.5 | 6.0 | 0.28 | P-Cyg | ||
| 10241.246 | (1−0) | P | 14 | 5.29E-04 | 380.026 | 41.9 | 6.2 | 0.32 | poor, P-Cyg | ||
| 10242.921 | (1−0) | Q | 20 | 1.18E-03 | 759.436 | 25.1 | 5.9 | 0.23 | poor, P-Cyg | ||
| 10262.766 | (1−0) | Q | 22 | 1.18E-03 | 914.635 | 20.1 | 7.0 | 0.15 | bad | ||
Notes. The wavenumbers of the C2 (1, 0) and (2, 90) Phillips bands have been taken from Chauville et al. (1977) and that of (3, 0) and (4, 0) from Ballik & Ramsay (1963) Conversion from wavenumbers in vacuum to wavelengths in air was made by applying Edlen’s formula following Morton (1991). Energy levels have been computed from the spectroscopic constants of Marenin & Johnson (1970). For the source of oscillator strengths see text.
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