A forecast study claims SKA with 0.001 Hz spectral resolution could measure cosmic redshift drift at millimeter-per-second precision over 0.5 years, yielding tight dark energy constraints.
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Redshift drift effect through the observation of HI 21cm signal with SKA
A forecast study claims SKA with 0.001 Hz spectral resolution could measure cosmic redshift drift at millimeter-per-second precision over 0.5 years, yielding tight dark energy constraints.