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Table 4.
Line flux ratios of the detected sodium emission lines and the strong C2 band head at 5165 Å in the spectra of comet NEOWISE.
| Emission line | Date | Heliocentric | Flux [Emission line] | Instrument | References |
|---|---|---|---|---|---|
| distance [AU] | Flux [C2(5165 Å)] | ||||
| NaID2 5890 Å | 21 July 2020 | 0.61 | 0.44 ± 0.01 | FLECHAS | 1 |
| NaID2 5890 Å | 23 July 2020 | 0.65 | 0.15 ± 0.01 | FLECHAS | 1 |
| NaID2 5890 Å | 26 July 2020 | 0.72 | 0.05 ± 0.01 | HARPS-N | This work |
| NaID1 5896 Å | 21 July 2020 | 0.61 | 0.29 ± 0.01 | FLECHAS | 1 |
| NaID1 5896 Å | 23 July 2020 | 0.65 | 0.10 ± 0.01 | FLECHAS | 1 |
| NaID1 5896 Å | 26 July 2020 | 0.72 | 0.02 ± 0.01 | HARPS-N | This work |
References. (1) Bischoff & Mugrauer (2021).
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