Table 1
The mean level of the Stokes I, Q, and U parameters at 353 GHz, in units of MJy sr-1.
| Region | Dust shell | Mon OB2 | Background | Difference: Shell | Difference: Mon OB2 | ||
|
|
|||||||
| ⟨ I ⟩ | 9.44 ± 0.08 | 10.6 ± 0.2 | 3.631 ± 0.006 | 5.80 ± 0.09 | 7.02 ± 0.2 | ||
| ⟨ Q ⟩ | 0.278 ± 0.003 | 0.461 ± 0.005 | 0.1911 ± 0.0006 | 0.087 ± 0.004 | 0.270 ± 0.005 | ||
| ⟨ U ⟩ | 0.045 ± 0.003 | −0.004 ± 0.005 | 0.0488 ± 0.0005 | −0.004 ± 0.004 | −0.053 ± 0.005 | ||
Notes. The first three columns correspond to the dust shell, the Mon OB2 cloud and the background regions, respectively, as defined in the text and in Fig. 3. Their uncertainties are given by the standard error on the mean. The last two columns list the mean Stokes parameters in the dust shell and Mon OB2 cloud, respectively, corrected for the background contribution. The background subtraction is accounted for in the uncertainties as described in Sect. 4.2.1.
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