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Table 4.

Results from fitting the simulated IXPE blackbody data.

Model name χ2/D.o.F. norm χ ξ Δϕ β nH ϕ offset
[10−9] [°] [°] [rad] [c] [1022cm−2] [°]
Blackbody (input) NA 12.1 15.0 60.0 0.30 0.40 0.556 0 0.860
Blackbody (best fit) 195.0/202 12.1 15.7 59.8 0.33 0.37 0.557 −1.7 0.860
Fixed-ions cond. surf. (best fit) 754.6/202 9.26 15.7 60.0 0.30 0.44 0.642 1.1 0.919
Blackbody (no QED) 711.3/202 12.2 15.7 59.8 0.33 0.37 0.557 −1.7 0.860

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