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Table 4
Molecular observations in comet C/2006 P1 (Mc Naught).
| UT date (2007) | ⟨ rh ⟩ | ⟨ Δ ⟩ | Int. time | Line |
|
Velocity offset | Offset |
| [mm/dd.dd–dd.dd] | [AU] | [AU] | [min] | [K km s-1] | [km s-1] | ||
|
|
|||||||
| IRAM 30-m: | |||||||
| 01/15.65 | 0.207 | 0.817 | 0.1 | HCN(3−2) | 83.74 ± 7.63 | −0.27 ± 0.16 | 2.6″ |
| 0.207 | 0.817 | 0.2 | HCN(3−2) | 57.66 ± 5.82 | + 0.33 ± 0.18 | 5.0″ | |
| 0.207 | 0.817 | 2.0 | HCN(3−2) | 31.78 ± 3.07 | + 0.40 ± 0.18 | 7.4″ | |
| 0.207 | 0.817 | 0.3 | HCN(3−2) | 22.89 ± 5.08 | −0.21 ± 0.38 | 8.9″ | |
| 0.207 | 0.817 | 0.8 | HCN(3−2) | 13.76 ± 3.32 | + 0.33 ± 0.44 | 12.1″ | |
| 01/16.53 | 0.228 | 0.821 | 8.0 | HCN(3−2) | 48.45 ± 0.42 | −0.07 ± 0.02 | 4.9″ |
| 01/16.54 | 0.228 | 0.821 | 8.0 | HCN(3−2) | 63.65 ± 0.39 | −0.09 ± 0.01 | 2.1″ |
| 01/16.55 | 0.228 | 0.821 | 20.0 | HCN(3−2) | 37.47 ± 0.26 | −0.06 ± 0.02 | 6.5″ |
| 01/16.54 | 0.228 | 0.821 | 4.0 | HCN(3−2) | 27.28 ± 0.57 | −0.03 ± 0.05 | 8.2″ |
| 01/16.58 | 0.229 | 0.822 | 12.0 | HCN(3−2) | 47.89 ± 0.28 | −0.03 ± 0.01 | 4.7″ |
| 01/16.59 | 0.229 | 0.822 | 8.0 | HCN(3−2) | 16.60 ± 0.33 | + 0.04 ± 0.05 | 9.3″ |
| 01/17.55 | 0.255 | 0.832 | 2.0 | HCN(3−2) | 35.91 ± 0.59 | −0.05 ± 0.04 | 3.3″ |
| 01/17.54 | 0.255 | 0.832 | 10.0 | HCN(3−2) | 21.81 ± 0.28 | −0.02 ± 0.03 | 5.3″ |
| 01/17.56 | 0.255 | 0.833 | 31.0 | HCN(3−2) | 15.58 ± 0.16 | + 0.04 ± 0.02 | 7.1″ |
| 01/17.55 | 0.255 | 0.832 | 5.0 | HCN(3−2) | 14.44 ± 0.40 | −0.02 ± 0.06 | 8.5″ |
| 01/17.58 | 0.256 | 0.833 | 20.0 | HCN(3−2) | 6.72 ± 0.22 | −0.04 ± 0.07 | 10.7″ |
| 01/17.58 | 0.256 | 0.833 | 12.0 | HCN(3−2) | 5.69 ± 0.27 | −0.06 ± 0.11 | 12.4″ |
| 01/16.54 | 0.228 | 0.821 | 20.0 | HCN(1−0) | 1.723 ± 0.057 | + 0.16 ± 0.05 | 3.9″ |
| 01/16.55 | 0.228 | 0.821 | 16.0 | HCN(1−0) | 1.505 ± 0.066 | + 0.02 ± 0.06 | 6.8″ |
| 01/16.54 | 0.228 | 0.821 | 4.0 | HCN(1−0) | 1.574 ± 0.131 | −0.13 ± 0.11 | 8.1″ |
| 01/16.59 | 0.229 | 0.822 | 12.0 | HCN(1−0) | 1.920 ± 0.031 | −0.01 ± 0.02 | 4.8″ |
| 01/16.59 | 0.229 | 0.822 | 8.0 | HCN(1−0) | 1.261 ± 0.037 | −0.08 ± 0.03 | 10.2″ |
| 01/17.55 | 0.255 | 0.832 | 2.0 | HNC(3−2) | 4.05 ± 0.55 | −0.06 ± 0.18 | 3.7″ |
| 01/17.54 | 0.255 | 0.832 | 9.0 | HNC(3−2) | 3.16 ± 0.24 | + 0.03 ± 0.09 | 4.7″ |
| 01/17.56 | 0.255 | 0.833 | 23.0 | HNC(3−2) | 1.53 ± 0.16 | + 0.11 ± 0.12 | 6.7″ |
| 01/17.54 | 0.255 | 0.832 | 14.0 | HNC(3−2) | 1.52 ± 0.20 | + 0.13 ± 0.16 | 9.1″ |
| 01/17.54 | 0.255 | 0.832 | 8.0 | HNC(3−2) | 0.52 ± 0.26 | 11.5″ | |
| 01/17.55 | 0.255 | 0.832 | 2.0 | CS(3−2) | 2.84 ± 0.20 | + 0.07 ± 0.08 | 3.4″ |
| 01/17.54 | 0.255 | 0.832 | 8.0 | CS(3−2) | 2.47 ± 0.10 | −0.04 ± 0.04 | 4.7″ |
| 01/17.56 | 0.255 | 0.833 | 24.0 | CS(3−2) | 1.53 ± 0.06 | −0.03 ± 0.04 | 6.8″ |
| 01/17.54 | 0.255 | 0.832 | 13.0 | CS(3−2) | 1.17 ± 0.08 | −0.09 ± 0.08 | 9.1″ |
| 01/17.54 | 0.255 | 0.832 | 9.0 | CS(3−2) | 1.01 ± 0.09 | + 0.11 ± 0.10 | 11.4″ |
| 01/17.51–17.58 | 0.255 | 0.832 | 47 | CH3CN(8, 0−7, 0) | 0.148 ± 0.040 | + 0.45 ± 0.20 | 6.9″ |
| CH3CN(8, 1−7, 1) | 0.080 ± 0.044 | −0.60 ± 0.47 | |||||
| CH3CN(8, 2−7, 2) | 0.004 ± 0.039 | ||||||
| CH3CN(8, 3−7, 3) | 0.104 ± 0.042 | −1.01 ± 0.62 | |||||
| Sum of the 4 lines | 0.334 ± 0.083 | ||||||
| 01/16.52–16.60 | 0.228 | 0.821 | 48 | CH3OH(1, 0−1, −1)E | 0.203 ± 0.050 | 4.9″ | |
| CH3OH(2, 0−2, −1)E | 0.160 ± 0.047 | −0.52 ± 0.44 | |||||
| CH3OH(3, 0−3, −1)E | 0.309 ± 0.050 | ||||||
| CH3OH(4, 0−4, −1)E | 0.327 ± 0.048 | −0.06 ± 0.21 | |||||
| CH3OH(5, 0−5, −1)E | 0.305 ± 0.047 | + 0.14 ± 0.22 | |||||
| CH3OH(6, 0−6, −1)E | 0.347 ± 0.047 | −0.05 ± 0.20 | |||||
| CH3OH(7, 0−7, −1)E | 0.297 ± 0.042 | −0.24 ± 0.20 | |||||
| 01/16.54–16.60 | 0.228 | 0.821 | 8 | CH3OH(J,0−J,−1)E1 | 0.857 ± 0.198 | −0.60 ± 0.35 | 8.9″ |
| 01/17.51–17.58 | 0.255 | 0.832 | 48 | CH3OH(1, 0−1, −1)E | 0.024 ± 0.035 | 6.7″ | |
| CH3OH(2, 0−2, −1)E | −0.021 ± 0.039 | ||||||
| CH3OH(3, 0−3, −1)E | 0.081 ± 0.035 | ||||||
| CH3OH(4, 0−4, −1)E | 0.028 ± 0.042 | + 0.64 ± 0.60 | |||||
| CH3OH(5, 0−5, −1)E | 0.095 ± 0.040 | −0.47 ± 0.46 | |||||
| CH3OH(6, 0−6, −1)E | 0.103 ± 0.045 | −0.17 ± 0.47 | |||||
| CH3OH(7, 0−7, −1)E | 0.082 ± 0.040 | −0.55 ± 0.40 | |||||
| CH3OH(J,0−J,−1)E1 | 0.380 ± 0.079 | −0.40 ± 0.29 | 6.7″ | ||||
| 01/16.52–16.60 | 0.228 | 0.821 | 60 | H2CO(312−211) | 0.334 ± 0.050 | −0.18 ± 0.20 | 6.1″ |
| 01/16.52–16.59 | 0.228 | 0.821 | 36 | HDO(312−211) | 0.227 ± 0.064 | −0.68 ± 0.40 | 4.2″ |
| 01/15.60 | 0.207 | 0.817 | 5.0 | CO(2−1) | < 2.31 | 12.1″ | |
| 01/17.59–17.61 | 0.256 | 0.833 | 24 | CO(2−1) | 0.30 ± 0.09 | −0.07 ± 0.43 | 11.2″ |
| 01/17.59–17.61 | 0.256 | 0.833 | 24 | HCO+(1−0) | 0.36 ± 0.05 | −0.05 ± 0.27 | 10.9″ |
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