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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″

Notes. 

(1)

Sum of CH3OH lines J,K = (4, 0−4, −1)E, (5, 0−5, −1)E, (6, 0−6, −1)E and (7, 0−7, −1)E.

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