%0 Generic %1 pan2019inflow %A Pan, Zhizheng %A Peng, Yingjie %A Zheng, Xianzhong %A Wang, Jing %A Kong, Xu %D 2019 %K evolution gas inflow outflow %T The inflow and outflow rate evolution of local Milky Way-mass star-forming galaxies since z=1.3 %U http://arxiv.org/abs/1903.08477 %X We study the gas inflow rate ($\zeta_inflow$) and outflow rate ($\zeta_outflow$) evolution of local Milky Way-mass star-forming galaxies (SFGs) since $z=1.3$. The stellar mass growth history of Milky Way-mass progenitor SFGs is inferred from the evolution of the star formation rate (SFR)$-$stellar mass ($M_\ast$) relation, and the gas mass ($M_gas$) is derived using the recently established gas scaling relations. With the $M_\ast+M_gas$ growth curve, the net inflow rate $\kappa$ is quantified at each cosmic epoch. At $z1.3$, $\kappa$ is comparable with the SFR, whereas it rapidly decreases to $0.15\times$SFR at $z=0$. We then constrain the average outflow rate $\zeta_outflow$ of progenitor galaxies by modeling the evolution of their gas-phase metallicity. The best-fit $\zeta_outflow$ is found to be $(0.5-0.8)\times$SFR. Combining $\kappa$ and $\zeta_outflow$, we finally investigate the evolution of $\zeta_\rm inflow$ since $z=1.3$. We find that $\zeta_inflow$ rapidly decreases by $\sim$80\% from $z=1.3$ to $z=0.5$. At $z<0.5$, $\zeta_inflow$ continuously decreases but with a much lower decreasing rate. Implications of these findings on galaxy evolution are discussed.

@misc{pan2019inflow, abstract = {We study the gas inflow rate ($\zeta_{\rm inflow}$) and outflow rate ($\zeta_{\rm outflow}$) evolution of local Milky Way-mass star-forming galaxies (SFGs) since $z=1.3$. The stellar mass growth history of Milky Way-mass progenitor SFGs is inferred from the evolution of the star formation rate (SFR)$-$stellar mass ($M_{\ast}$) relation, and the gas mass ($M_{\rm gas}$) is derived using the recently established gas scaling relations. With the $M_{\ast}+M_{\rm gas}$ growth curve, the net inflow rate $\kappa$ is quantified at each cosmic epoch. At $z\sim 1.3$, $\kappa$ is comparable with the SFR, whereas it rapidly decreases to $\sim 0.15\times$SFR at $z=0$. We then constrain the average outflow rate $\zeta_{\rm outflow}$ of progenitor galaxies by modeling the evolution of their gas-phase metallicity. The best-fit $\zeta_{\rm outflow}$ is found to be $(0.5-0.8)\times$SFR. Combining $\kappa$ and $\zeta_{\rm outflow}$, we finally investigate the evolution of $\zeta_{\rm inflow}$ since $z=1.3$. We find that $\zeta_{\rm inflow}$ rapidly decreases by $\sim$80\% from $z=1.3$ to $z=0.5$. At $z<0.5$, $\zeta_{\rm inflow}$ continuously decreases but with a much lower decreasing rate. Implications of these findings on galaxy evolution are discussed.}, added-at = {2019-03-21T15:04:55.000+0100}, author = {Pan, Zhizheng and Peng, Yingjie and Zheng, Xianzhong and Wang, Jing and Kong, Xu}, biburl = {https://www.bibsonomy.org/bibtex/227f782bbf9cd298a60870c1ff98d9cf0/heh15}, description = {The inflow and outflow rate evolution of local Milky Way-mass star-forming galaxies since z=1.3}, interhash = {74a667500d7785e66efc10bdc196bc62}, intrahash = {27f782bbf9cd298a60870c1ff98d9cf0}, keywords = {evolution gas inflow outflow}, note = {cite arxiv:1903.08477Comment: 12 pages, 9 figures, accepted by ApJ}, timestamp = {2019-03-21T15:04:55.000+0100}, title = {The inflow and outflow rate evolution of local Milky Way-mass star-forming galaxies since z=1.3}, url = {http://arxiv.org/abs/1903.08477}, year = 2019 }