Revealing the physical properties of gas accreting to haloes in the EAGLE simulations

The inflow of cosmological gas onto haloes, while challenging to directly observe and quantify, plays a fundamental role in the baryon cycle galaxies. Using EAGLE suite hydrodynamical simulations, we present thorough exploration physical properties accreting haloes -- namely, its spatial characteristics, density, temperature, metallicity. Classifying accretion as ``hot'' or `` cold'' based on temperature cut $10^{5.5}{\rm K}$, find that covering fraction ($f_{\rm cov}$) cold-mode is significantly lower than hot-mode, with $z=0$ $f_{\rm cov}$ values $\approx 50\%$ 80\%$ respectively. Active Galactic Nuclei (AGN) feedback reduces by 10\%$, outflows decreasing solid angle available for flows. particle history, first-infall halo metal-depleted 2$~dex compared pre-processed gas, which mimic circum-galactic medium (CGM) terms metal content. We also show high (low) halo-scale rates are associated metal-poor (rich) CGM below $10^{12}M_{\odot}$, variation may offer explanation enhanced scatter star-forming main sequence at low ($\lesssim10^{9}M_{\odot}$) ($\gtrsim10^{10}M_{\odot}$) stellar masses. Our results highlight how influences several halo- galaxy-scale properties, need combine kinematic chemical data order confidently break degeneracy between outgoing observations.