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Table 6

Comparison of production rates of detected species relative to HCN and H2O in comet C/2002 T7 (LINEAR) with 1-σ statistical uncertainties.

Molecule Qa Q/QHCN Q/QH2Ob Q/QH2Oc Q/QH2Od
(molec.s-1)

HCN 4.54(10) × 1026 1 1.51(3) × 10-3 3.3(11) × 10-3 1 × 10-3
H2CO 2.14(33) × 1027 4.72(73) 7.1(11) × 10-3 1.3 × 10-3
CO <1.87 × 1028 <4.12 × 101 <6.23 × 10-2
CS 6.01(23) × 1026 1.32(6) 2.00(8) × 10-3 7.5(25) × 10-3
CH3OH 1.85(20) × 1028 4.07(44) × 101 6.16(65) × 10-2 3.8(8) × 10-2 7 × 10-3
HNC 4.96(32) × 1025 1.09(8) × 10-1 1.65(11) × 10-4 <7.5 × 10-5

Notes.

(a)

Weighted mean of production rates measured at the SMT on 8–12 May 2004 derived from an excitation and radiative transfer model assuming a pointing offset of 2′′.

(b)

A water production rate of QH2O = 3 × 1029  molec.s-1 was adopted to calculate the abundances, close to the measurement by the Odin satellite on UT 25.9 May 2004 (Biver et al. 2007b).

(c)

Mixing ratios obtained between 11 and 15 May 2004 with the BIMA array and on 15 and 25 May 2004 with the 12-m ARO telescope for a parent source distribution (Friedel et al. 2005; Remijan et al. 2006; Milam et al. 2006).

(d)

Mixing ratios obtained in the period 11–15 May at the OVRO and BIMA arrays (Hogerheijde et al. 2009).

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