Linear bias and halo occupation distribution of emission line galaxies from Nancy Grace Roman Space Telescope

We present measurements of the linear galaxy bias of H$\alpha$ and [OIII] emission line galaxies (ELGs) for the High Latitude Spectroscopic Survey (HLSS) of Nancy Grace Roman Space Telescope, using galaxy mocks constructed using semi-analytical model for galaxy formation, {\it Galacticus}, with a large cosmic volume and redshift coverage. We compute the two-point statistics of galaxies in configuration space and measure linear bias within scales of $10\sim50 h^{-1}$Mpc. We adopt different selection algorithms to investigate the impact of the Roman line flux cut, as well as the effect of dust model used to calibrate Galacticus, on the bias measurements. We consider galaxies with H$\alpha$ and [OIII] emissions over the redshift range $1

Keywords:

• Galaxy formation and evolution
• Dark matter
• Halo
• Astrophysics
• Redshift
• Spitzer Space Telescope
• Cosmology
• Physics
• Galaxy
• Halo occupation distribution

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