FRB dispersion is an approximately unbiased tracer of matter on linear scales, enabling direct constraints on the baryonic parameter B8 independently of feedback and with statistical power comparable to weak lensing using far fewer objects.
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Tianlai pathfinder data yields a spherically averaged 21 cm power spectrum at z~0.9 after RFI flagging, calibration, imaging, point-source subtraction, and SVD foreground removal.
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Fast radio burst dispersion is an unbiased tracer of matter on large scales
FRB dispersion is an approximately unbiased tracer of matter on linear scales, enabling direct constraints on the baryonic parameter B8 independently of feedback and with statistical power comparable to weak lensing using far fewer objects.
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21 cm Power Spectrum Analysis of North Celestial Pole Observations with the Tianlai Dish Pathfinder Array
Tianlai pathfinder data yields a spherically averaged 21 cm power spectrum at z~0.9 after RFI flagging, calibration, imaging, point-source subtraction, and SVD foreground removal.