Table 4
Mean of the logarithm of production rates and A(0)fρ ratios with respect to OH, and for C2 with respect to CN for 41P and 45P compared to the mean values presented in A’Hearn et al. (1995) and Schleicher (2008).
| Log production rate ratio | ||||
|---|---|---|---|---|
| Species | 41Pa | 45Pb | Schleicher | A’Hearn |
| (2008)c | et al. (1995)d | |||
| C2/CN | 0.06 ± 0.003 | 0.04 ± 0.003 | 0.10 | 0.06 ± 0.10 |
| C2/OH | −2.64 ± 0.04 | −2.75 ± 0.01 | −2.46 | −2.44 ± 0.20 |
| CN/OH | −2.70 ± 0.04 | −2.78 ± 0.01 | −2.55 | −2.50 ± 0.18 |
| C3/OH | −3.25 ± 0.03 | −3.21 ± 0.02 | −3.12 | −3.55 ± 0.29 |
| NH/OH | −2.03 ± 0.01 | – | −2.23 | −2.37 ± 0.27 |
| Afρ/OH | −25.70 ± 0.03 | −25.71 ± 0.34 | – | −25.80 ± 0.40 |
Notes. The A(θ = 0°)fρ values used for 41P and 45P are derived from BC filter. The ratio of A(0)fρ to Q(OH) has units of cm s molecules−1. (a) The mean values computed for pre- and post-perihelion. (b)The mean values computed for post-perihelion. (c)The mean values for typical comets given in Schleicher (2008). (d)The mean valuesfor typical comets given in A’Hearn et al. (1995).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.