The Impact of Spectroscopic Redshift Errors on Cosmological Measurements

[2508.21182] The Impact of Spectroscopic Redshift Errors on Cosmological Measurements Skip to main content We gratefully acknowledge support from the Simons Foundation, member institutions , and all contributors.
While this effect is negligible for the DESI ELG populations ($f_c=1\%$), the slitless-like errors, combining redshift uncertainty with $f_c=5\%$ catastrophics, introduce significant biases in cosmological constraints.
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