For slitless-spectroscopy surveys, a 5% catastrophic redshift failure rate biases the growth rate and primordial amplitude by 6-16% (~2.2σ) unless the failure rate is measured and included in the clustering model.
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The Impact of Spectroscopic Redshift Errors on Cosmological Measurements
For slitless-spectroscopy surveys, a 5% catastrophic redshift failure rate biases the growth rate and primordial amplitude by 6-16% (~2.2σ) unless the failure rate is measured and included in the clustering model.