Ponente
Descripción
Magnification bias, an observational effect of weak gravitational lensing, is studied through angular correlations of sources at different redshifts, particularly with sub-millimeter galaxies (SMGs), providing astrophysical and cosmological insights. Investigating the magnification bias effect exerted by galaxy clusters on SMGs within the ΛCDM model, constraints on cosmological and astrophysical parameters are derived using a cross-correlation function and a Markov Chain Monte Carlo algorithm. Results, while consistent with ΛCDM, show less constrained parameters due to broader redshift distributions and limited cluster statistics. Nevertheless, the study highlights the potential of using galaxy clusters as lenses for magnification bias studies, with opportunities for improvement through expanding the lens sample size.
