Table 2
Parameters for the analytical approximation to the BARE-GR-S size distribution defined in Eqs. (3) through (5) and the bulk densities for the three components in our dust model.
| Parameter | Units | PAH | Graphite | Silicate |
|
|
||||
| amin | μm | 0.00035 | 0.00035 | 0.00035 |
| amax | μm | 0.005 | 0.33 | 0.37 |
|
|
||||
| A | μm-1 H-1 | 2.227433 × 10-7 | 1.905816 × 10-7 | 1.471288 × 10-7 |
| c 0 | 1 | −8.02895 | −9.86000 | −8.47091 |
| b 0 | 1 | −3.45764 | −5.02082 | −3.68708 |
| b 1 | 1 | 1.18396 × 103 | 5.81215 × 10-3 | 2.37316 × 10-5 |
| a 1 | μm | 1 | 0.415861 | 7.64943 × 10-3 |
| m 1 | 1 | −8.20551 | 4.63229 | 22.5489 |
| b 2 | 1 | 0 | 0 | 0 |
| a 2 | μm | 1 | 1 | 1 |
| m 2 | 1 | 1 | 1 | 1 |
| b 3 | 1 | 1.0 × 1024 | 1.12502 × 103 | 2.96128 × 103 |
| a 3 | μm | −5.29496 × 10-3 | 0.160344 | 0.480229 |
| m 3 | 1 | 12.0146 | 3.69897 | 12.1717 |
| b 4 | 1 | 0 | 1.12602 × 103 | 0 |
| a 4 | μm | 0 | 0.160501 | 0 |
| m 4 | 1 | 1 | 3.69967 | 1 |
|
|
||||
| ρ bulk | kg m-3 | 2240 | 2240 | 3500 |
Notes. With these parameter values, the grain size a substituted in the equations must be expressed in μm, and the resulting size distribution Ωk(a) is expressed in number of dust grains per hydrogen atom and per μm.
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