Open Access
Table 10
Abundance ratios derived from the optical and infrared data of comet C/2017 K2.
| UT Date | rh (au) |
r∆ (au) |
CN/OH | Abundances ratios (10−3) | C2H6/H2O | Tel/Instrument | ||
|---|---|---|---|---|---|---|---|---|
| HCN/H2O | C2/OH | C2H2/H2O | ||||||
| 2022 Jul. 05 | 2.73 | 1.82 | – | <3.88 | – | <4.78 | 7.73 ± 2.93 | CRIRES+ |
| 2022 Jul. 07 | 2.71 | 1.82 | 5.56 ± 3.89 | – | 5.98 ± 4.18 | – | – | TRAPPIST |
| 2022 Sep. 21 | 2.12 | 2.34 | 1.68 ± 0.22 | 1.48 ± 0.58 | 1.76 ± 0.23 | <3.14 | 13.30 ± 3.20 | TRAPPIST & CRIRES+ |
| 2022 Sep. 22 | 2.11 | 2.35 | 2.03 ± 0.29 | 2.29 ± 1.07 | 1.69 ± 0.24 | <4.93 | 14.50 ± 3.50 | TRAPPIST & CRIRES+ |
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