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

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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 $1<z<3$, as specified by the current baseline for the Roman HLSS.