Table 4
Dust model parameters and dust production rates of comet C/2006 W3 (Christensen) derived from PACS 70 μm and 160 μm data for carbon and olivine grains.
Date | r h | Q CO | a max | v dust a | α | Q carbon b | Q olivine b | |||
a min | a max | 70 μm | 160 μm | 70 μm | 160 μm | |||||
(yyyy-mm-dd) | (AU) | (molec s-1) | (mm) | (m s-1) | (m s-1) | (kg s-1) | (kg s-1) | (kg s-1) | (kg s-1) | |
|
||||||||||
-3 | 1520 | 1092 | 923 | 1190 | ||||||
2009-11-08 | 3.35 | 3 × 1028 | 0.59c | 5.7 | 174 | -3.5 | 923 | 884 | 676 | 965 |
-4 | 650 | 900 | 606 | 1220 | ||||||
|
||||||||||
-3 | 89 | 56 | 63 | 76 | ||||||
2010-08-26 | 4.96 | 4 × 1027 | 0.07 | 6.3 | 106d | -3.5 | 82 | 68 | 70 | 102 |
-4 | 98 | 112 | 96 | 182 | ||||||
|
||||||||||
-3 | 172 | 102 | 113 | 109 | ||||||
2010-08-26 | 4.96 | 8 × 1027 | 0.14 | 6.3 | 131d | -3.5 | 139 | 104 | 109 | 130 |
-4 | 140 | 153 | 133 | 221 |
Notes.
In Paper I, the maximum size computed by our dust model was multiplied by 1.5 to better match state-of-the-art hydrodynamic simulations (see Crifo et al. 2005, and references therein).
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