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Table 2

Integrated peak and total flux.

Source Species Transition E up Q a QX/QH2O L p Peak flux Total fluxb
[K] [1026 s-1] [%] [km] [Jy beam-1 km s-1] [Jy km s-1]
Obs.c model Obs.c model
C/2012 F6(Lemmon) HCN 3–2 25.52 2.0 0.064 10 0.47 ± 0.05 0.42 3.57 ± 0.08 4.24
4–3 42.53 2.3 0.130 10 1.13 ± 0.11 1.03 8.63 ± 0.12 8.71
HNC 4–3 43.51 0.06 0.003 10 0.07 ± 0.02 0.06 0.14 ± 0.06d 0.22d
HCO+ 3–2 25.68 – – – 2.25 × 10-2e – – –
H2CO 51,5–41,4 62.45 1.8 ± 0.3 0.102 ± 0.017 1400 ± 300 0.06 ± 0.01 0.06 0.79 ± 0.04 0.78
CH3OH 11,1–00,0 16.84 17.1 ± 0.9f 0.967 ± 0.053 10 0.10 ± 0.01 0.14 0.80 ± 0.06 0.88
52,3–41,3 57.07 12.0 0.384 10 0.07 ± 0.02 0.06 0.42 ± 0.13 0.55
71,6–61,5 80.09 17.1 ± 0.9f 0.967 ± 0.053 10 0.13 ± 0.01 0.11 0.88 ± 0.04 0.76
72,5–62,4 87.26 17.1 ± 0.9f 0.967 ± 0.053 10 0.21 ± 0.02 0.18 1.28 ± 0.05 1.07
C/2012 S1(ISON) CS 7–6 65.83 6.7 0.191 200 ± 50 0.50 ± 0.05 0.50 5.21 ± 0.12 5.22
HCN 4–3 42.53 4.0 ± 0.5 0.114 ± 0.014 150 ± 50 1.01 ± 0.10 1.02 11.78 ± 0.18 11.79
HNC 4–3 43.51 1.8 0.051 1200 0.12 ± 0.02 0.14 2.33 ± 0.19 2.22
HCO+ 4–3 42.86 – – – 3.06×10-2e – – –
H2CO 51,5–41,4 62.45 8.0 ± 1.0 0.229 ± 0.029 250 ± 50 0.38 ± 0.04 0.39 3.70 ± 0.14 3.72
CH3OH 11,1–00,0 16.84 17.0 ± 5.0 0.486 ± 0.143 10 0.07 ± 0.02 0.07 0.25 ± 0.13 0.24

Notes.

(a)

Production rate including 1σ error.

(b)

Spectrally integrated line flux in circular aperture of 5 arcsec diameter centred on comet.

(c)

Errors assume a 10% absolute flux calibration error.

(d)

Spectrally integrated line flux in circular aperture of 3 arcsec diameter centred on comet.

(e)

3σ upper limit.

(f)

Weighted average.

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