Table 4
Best-fit models for the radial distribution of scattering grains using different minimum and maximum grain sizes.
| a | ρ ° | τ V |
| (μm) | (g cm-3) | |
|
|
||
| 0.01–0.05 | (3.3 ± 1.1) × 10-17 | 0.19 ± 0.07 |
| 0.01–0.1 | (6.5 ± 2.5) × 10-18 | 0.22 ± 0.08 |
| 0.01–0.2 |
|
|
| 0.01–0.3 |
|
|
| 0.01–0.4 |
|
|
| 0.01–0.5 |
|
|
| 0.3–0.5 |
|
|
Notes. ρ° is the density needed at R° to produce the IPF for a model with n = 4.5. τV is the radial V-band optical depth of the corresponding model. We also show the range in ρ° and τV required to reproduce the observed variation of polarisation degree between the octants with maximum and minimum values. The question marks indicate that we were not able to reproduce the MPF because the models become too optically thick.
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.