National Radio
Astronomy Observatory

5.3.17 Polarization imaging

The clean task handles full and partial Stokes polarization imaging through the setting of the stokes parameter (§ 5.2.9). The subsequent deconvolution of the polarization planes of the image and the search for clean components is controlled by the psfmode parameter (§ 5.3.1). If the stokes parameter includes polarization planes other than I, then choosing psfmode=’hogbom’ (§ 5.3.1.2) or psfmode=’clarkstokes’ (§ 5.3.1.3) will clean (search for components) each plane sequentially, while psfmode=’clark’ (§ 5.3.1.1) will deconvolve jointly.

The interactive clean example given above (§ 5.3.14) shows a case of polarization imaging. You can also find the script for this example in Appendix F.2.

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