The Synthetic Emission Line COSMOS catalog: H$\alpha$ and [OII] galaxy luminosity functions and counts at $0.3<z<2.5$

Understand

Star-forming galaxies with strong nebular and collisional emission lines are privileged target galaxies in forthcoming cosmological large galaxy redshift surveys.

• We use the COSMOS2015 photometric catalog to model galaxy spectral energy distributions and emission-line fluxes.
• We adopt an empirical but physically-motivated model that uses information from the best-fitting spectral energy distribution of stellar continuum to each galaxy.
• The emission-line flux model is calibrated and validated against direct flux measurements in subsets of galaxies that have 3D-HST or zCOSMOS-Bright spectra.