The low-redshift circumgalactic medium in <scp>simba</scp>

We examine the properties of low-redshift circumgalactic medium (CGM) around star-forming and quenched galaxies in Simba cosmological hydrodynamic simulations, focusing on comparing HI metal line absorption to observations from COS-Halos COS-Dwarfs surveys. Halo baryon fractions are generally $\lesssim 50\%$ cosmic fraction due stellar feedback at low masses, jet-mode AGN high masses. Baryons metals CGM $\gtrsim 90\%$ hot gas, while is more multi-phase. Hot gas has metallicity, warm cool have metallicity close that galactic gas. Equivalent widths, covering total path selected lines (MgII, SiIII, CIV OVI) a matched sample mostly consistent with 0.4$~dex, depending ion assumed ionising background. Around galaxies, all ions lower, significantly under-predicted. Metal-line sensitive choice photo-ionising background; assuming recent backgrounds, matches OVI but under-predicts ions, an older background OVI. reproduces observed dichotomy star forming galaxies. primarily come feedback, reduces particularly for lower ions.