An intrinsic degeneracy in two-spot thermal X-ray pulse models creates multi-modal posteriors that can bias neutron star radius estimates by up to 30%.
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A Hidden Degeneracy in Two-Spot Models for Thermal X-Ray Pulse-Profile Fitting
An intrinsic degeneracy in two-spot thermal X-ray pulse models creates multi-modal posteriors that can bias neutron star radius estimates by up to 30%.