Ionized gas kinematics and chemical abundances of low-mass star-forming galaxies at z ∼ 3

We selected 35 low-mass SFGs (7.91000\r{A} EW(CIII])>5\r{A}, closely resembling those now seen in EoR galaxies with JWST. low metallicities 12+log(O/H)~7.5-8.5 C/O abundances 23%-128% solar, no apparent increasing trend metallicity. From our profile modeling, we that 65% shows an component, which is shifted relative gas systemic velocity, $v_{max}$~280 km/s correlates $\Sigma_{SFR}$. mass-loading factor $\mu$ typically lower than more literature but higher typical local dwarf galaxies. In stellar mass range covered, increases $\Sigma_{SFR}$ thus suggesting for given mass, denser starbursts produce stronger outflows. results complement picture drawn similar studies at redshift, removal driven feedback regulated strength concentration star formation, i.e. $\Sigma_{\rm SFR}$.