| Abstract: |
Emission-Line Galaxies (ELGs) are star-forming galaxies that are the main cosmological tracers of the matter density field in 1 < z < 2, and used in numerous wide-field surveys such as DESI, Euclid, DESC, etc. They become particularly useful when used in conjunction with CMB secondary anisotropies such as CMB lensing and the cosmic infrared background (CIB). In this talk, I will discuss recent results based on the DESI ELG photometric sample and its cross-correlation with the Planck CMB lensing and CIB maps to constrain sigma8-Omega_M, as well as parameters that describe the cosmic star-formation history. I will focus on the unique analysis challenges these star-forming, blue galaxies have to overcome in comparison to the more traditionally known massive red galaxies. |
