Table 5
Upper limits of CN and H2O production rates and dust production rates of MBCs (Snodgrass et al. 2017a) compared to 66P.
| Objects | Q(H2 O) |
Q(CN) |
 |
rh | Q(H2O) | Q(CN) |  |
References |
|---|---|---|---|---|---|---|---|---|
| (1026 molec s−1) | (1024 molec s−1) | (kg s−1) | (au) | (1026molec s−1) | (1024molec s−1) | (kg s−1) | ||
| 133P | 0.1 | 0.1 | 7.2 | 2.64 | 0.02 | 0.01 | 1.4 | Licandro et al. (2011) |
| 176P | 2.6 | – | 0.5 | 2.58 | 0.40 | – | 0.1 | de Val-Borro et al. (2012) |
| 259P | 1.3 | 0.4 | – | 1.86 | 0.50 | 0.14 | – | Jewitt et al. (2009) |
| 288P | 6.1 | 2.6 | 2.3 | 2.52 | 1.00 | 0.42 | 0.5 | Hsieh et al. (2012a) |
| 313P | 3.2 | 1.6 | 1.7 | 2.41 | 0.60 | 0.18 | 0.4 | Jewitt et al. (2015) |
| 324P | 7.1 | 1.9 | 1.1 | 2.66 | 1.00 | 0.30 | 0.2 | Hsieh et al. (2012b) |
| 358P | 2.7 | 0.8 | 4.3 | 2.42 | 0.50 | 0.15 | 1.0 | Hsieh et al. (2013) |
| P/2013 R3 | 1.9 | 1.2 | <3.5 | 2.23 | 0.43 | 0.12 | <1.0(c) | Jewitt et al. (2014a) |
| 66P | 27.1 | 7.5 | 55.0 | 1.29 | 27.1 | 7.5 | 55.0 | This work |
Notes. (a) Scaled water and CN production rates to rh = 1.29 au, using Q(gas) 
given by A’Hearn et al. (1995).
(b) Scaled dust production rates to rh = 1.29 au, using the proxy relationship: 
, given by
A’Hearn et al. (1995). (c)The empirical limit to the mass loss, from Jewitt et al. (2017).
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