A new FFT-and-interpolation covariance method for pulsar timing arrays avoids the biased parameters produced by the standard diagonal Fourier-space approximation.
Expected properties of the first gravitational wave signal detected with pulsar timing arrays,
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Beyond diagonal approximations: improved covariance modeling for pulsar timing array data analysis
A new FFT-and-interpolation covariance method for pulsar timing arrays avoids the biased parameters produced by the standard diagonal Fourier-space approximation.