Table 3
Estimated angle differences.
 a |
Δγ | Δχ | | χfil − PA | | | χbg − PA | | |
| [deg] | [deg] | [deg] | [deg] | ||
|
|
|||||
| Musca ... | 0.12–0.2 | 39–14 | 12 | 82 | 70 |
| B211 ..... | 0.049–0.2 | 42–8 | 6 | 81 | 75 |
| L1506 ... | 0.039–0.2 | 25–3 | 54 | 17 | 37 |
Notes. Columns 2 and 3 give the values of
and the corresponding
Δγ =
γfil −
γbg computed for
(see Sect. 5.1.1). Column 4 gives the values of Δχ = |
χfil − χbg
| corresponding to the ψfil and
ψbg values of Table 2 for the polynomial fits (pol3). Columns 5 and
6 give the relative angle between the PA of the filament and the BPOS angle in the
filament and in the background, respectively. The PA of the filaments are given in
Table 1.
The smallest value of is the observed pbg.
The maximum value of 0.2 is close to the maximum dust polarization fraction
observed by Planck at 353 GHz (Planck Collaboration Int. XIX 2015).
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