Table 6
Average production rates in 46P in December 2018.
| UT date | Molecule | rh | Production rate Q | Lines (a) |
|---|---|---|---|---|
| (dd.d-dd.d) | (au) | (× 1025 molec s−1) | ||
| 11.8–17.8 | HCN | 1.056 | 0.92 ± 0.01 | 2 |
| 11.8–17.8 | HNC | 1.056 | 0.011 ± 0.003 | 1 |
| HNCext (b) | 0.030 ± 0.009 | 1 | ||
| 12.0–18.1 | CH3CN | 1.056 | 0.137 ± 0.007 | 20 |
| 11.8–18.1 | CH3OH | 1.056 | 26.5 ± 0.2 | 71 |
| 12.1–18.1 | H2S | 1.056 | 7.31 ± 0.07 | 2 |
| 13.1–17.1 | H S |
1.056 | 0.36 ± 0.05 | 1 |
| 12.0–17.9 | CS | 1.056 | 0.22 ± 0.02 | 2 |
| 25.83 | CS | 1.070 | 0.18 ± 0.05 | 1 |
| 12.1–18.1 | H2CO | 1.056 | 0.37 ± 0.08 | 4 |
| H2COext (c) | 3.5 ± 0.4 | 4 | ||
| 25.20 | H2CO | 1.068 | 0.47 ± 0.05 | 2 |
| H2COext (c) | 2.5 ± 0.3 | 2 | ||
| 11.9–18.1 | NH2CHO | 1.056 | 0.12 ± 0.01 | (32) |
| 11.9–18.1 | CH3CHO | 1.056 | 0.50 ± 0.05 | (72) |
| 11.9–18.1 | C2H5OH | 1.056 | 0.90 ± 0.28 | (97) |
| 11.9–18.1 | (CH2OH)2 | 1.056 | 1.5 ± 0.2 | (93) |
| 12.1–18.1 | CO | 1.056 | <9.8 | (1) |
| 13.1–17.1 | H S |
1.056 | <0.36 | (1) |
| 12.0–18.1 | HDS | 1.056 | <0.43 | (2) |
| 11.8–18.1 | OCS | 1.056 | <0.56 | (6) |
| 11.8–18.1 | H2CS | 1.056 | ~0.13 | (7) |
| 12.0–18.1 | SO | 1.056 | <0.72 | (5) |
| 11.8–18.1 | SO2 | 1.056 | <0.24 | (5) |
| 12.0–17.9 | NS | 1.056 | <0.09 | (2) |
| 11.9–18.1 | CH3SH | 1.056 | <0.49 | (30) |
| 12.0–18.1 | H13CN | 1.056 | <0.014 | (1) |
| 12.0–18.1 | HC15N | 1.056 | <0.011 | (1) |
| 12.1–18.1 | DCN | 1.056 | <0.018 | (1) |
| 11.9–18.1 | HC3N | 1.056 | <0.025 | (8) |
| 11.9–18.1 | C2H3CN | 1.056 | <0.1 | (40) |
| 11.9–18.1 | C2 H5 CN | 1.056 | <0.1 | (74) |
| 11.9–18.1 | CH3 NH2 | 1.056 | <1.1 | (27) |
| 12.0–18.1 | HNCO | 1.056 | <0.07 | (3) |
| 11.9–18.1 | HCOOH | 1.056 | <0.28 | (16) |
| 11.9–18.1 | CH3 OCHO | 1.056 | <1.1 | (6) |
| 11.9–18.1 | CH2 CO | 1.056 | <0.27 | (9) |
| 11.9–18.1 | CH2 OHCHO | 1.056 | <0.33 | (11) |
| 11.9–18.1 | CH3 OCH3 | 1.056 | <1.0 | (7) |
| 11.9–18.1 | c-C2 CH4 O | 1.056 | <0.23 | (6) |
| 11.9–18.1 | CH3 COCH3 | 1.056 | <0.32 | (95) |
| 11.9–18.1 | CH3 COOH | 1.056 | <0.70 | (58) |
| 11.9–18.1 | Glycine I | 1.056 | <3.55 | (33) |
| 11.8–17.8 | PH3 | 1.056 | <1.2 | (1) |
| 11.8–17.8 | PN | 1.056 | <0.02 | (1) |
| 11.8–17.8 | PO | 1.056 | <0.11 | (4) |
| 17.1 | H2 O | 1.057 | <5100 | (1) |
| 11.8–18.1 | HDO | 1.056 | <1.4 | (3) |
Notes. (a) Number of lines used for the determination of Q, in parentheses when individual lines are not clearly detected. (b)Where we assume that HNC is produced in the coma with a Haser parent scale length of 1000 km (Cordiner et al. 2017). (c) Where we assume that H2CO is produced in the coma with a Haser parent scale length of 5000 km.
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