Magnification and evolution biases in large-scale structure surveys

Abstract Measurements of galaxy clustering in upcoming surveys such as those planned for the Euclid and Roman satellites, SKA Observatory, will be sensitive to distortions from lensing magnification Doppler effects, beyond standard redshift-space distortions. The amplitude these contributions depends sensitively on bias evolution number density. Magnification quantifies change observed galaxies gained or lost by magnification, while physical density relative conserved case. These biases are given derivatives density, consequently very form luminosity function. We give a careful derivation biases, clarifying results literature. then examine variety surveys, encompassing line intensity mapping at radio optical/near-infrared wavelengths.