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Fig. 4

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Albedo polarization maps for an isotropic, unpolarised point source sitting above the photosphere at four different radial locations of X = 214′′,543′′,750′′,936′′ at Y = 0′′ (corresponding μ = 0.97,0.82,0.62,0.22) after a single Compton scatter in the photosphere. All results are shown at the peak albedo energies of 20–50 keV. The length of each red arrow indicates the DOP and the direction of each arrow depicts the polarization angle Ψ within the chosen plotting bin. The solar radial direction (or X axis for this case) is defined as the Ψ = 0° position. An arrow length of 2′′ corresponds to a maximum DOP of 100%. The green and blue ellipses give the FWHM of the total and albedo sources respectively, while the green, blue and orange asterisks give the centroid position of the total, albedo and primary sources.

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