%0 Generic %1 sanders2017mosdef %A Sanders, Ryan L. %A Shapley, Alice E. %A Kriek, Mariska %A Freeman, William R. %A Reddy, Naveen A. %A Siana, Brian %A Coil, Alison L. %A Mobasher, Bahram %A Davé, Romeel %A Shivaei, Irene %A Azadi, Mojegan %A Price, Sedona H. %A Leung, Gene %A Fetherholf, Tara %A de Groot, Laura %A Zick, Tom %A Fornasini, Francesca M. %A Barro, Guillermo %D 2017 %K high-z mass metallicity relation sfr %T The MOSDEF survey: a stellar mass-SFR-metallicity relation exists at $z\sim2.3$ %U http://arxiv.org/abs/1711.00224 %X We investigate the nature of the relation among stellar mass, star-formation rate, and gas-phase metallicity (the M$_*$-SFR-Z relation) at high redshifts using a sample of 260 star-forming galaxies at $z\sim2.3$ from the MOSDEF survey. We present an analysis of the high-redshift M$_*$-SFR-Z relation based on several emission-line ratios for the first time. We show that a M$_*$-SFR-Z relation clearly exists at $z\sim2.3$. The strength of this relation is similar to predictions from cosmological hydrodynamical simulations. By performing a direct comparison of stacks of $z\sim0$ and $z\sim2.3$ galaxies, we find that $z\sim2.3$ galaxies have $\sim0.1$ dex lower metallicity at fixed M$_*$ and SFR. In the context of chemical evolution models, this evolution of the M$_*$-SFR-Z relation suggests an increase with redshift of the mass-loading factor at fixed M$_*$, as well as a decrease in the metallicity of infalling gas that is likely due to a lower importance of gas recycling relative to accretion from the intergalactic medium at high redshifts. Performing this analysis simultaneously with multiple metallicity-sensitive line ratios allows us to rule out the evolution in physical conditions (e.g., N/O ratio, ionization parameter, and hardness of the ionizing spectrum) at fixed metallicity as the source of the observed trends with redshift and with SFR at fixed M$_*$ at $z\sim2.3$. While this study highlights the promise of performing high-order tests of chemical evolution models at high redshifts, detailed quantitative comparisons ultimately await a full understanding of the evolution of metallicity calibrations with redshift.

@misc{sanders2017mosdef, abstract = {We investigate the nature of the relation among stellar mass, star-formation rate, and gas-phase metallicity (the M$_*$-SFR-Z relation) at high redshifts using a sample of 260 star-forming galaxies at $z\sim2.3$ from the MOSDEF survey. We present an analysis of the high-redshift M$_*$-SFR-Z relation based on several emission-line ratios for the first time. We show that a M$_*$-SFR-Z relation clearly exists at $z\sim2.3$. The strength of this relation is similar to predictions from cosmological hydrodynamical simulations. By performing a direct comparison of stacks of $z\sim0$ and $z\sim2.3$ galaxies, we find that $z\sim2.3$ galaxies have $\sim0.1$ dex lower metallicity at fixed M$_*$ and SFR. In the context of chemical evolution models, this evolution of the M$_*$-SFR-Z relation suggests an increase with redshift of the mass-loading factor at fixed M$_*$, as well as a decrease in the metallicity of infalling gas that is likely due to a lower importance of gas recycling relative to accretion from the intergalactic medium at high redshifts. Performing this analysis simultaneously with multiple metallicity-sensitive line ratios allows us to rule out the evolution in physical conditions (e.g., N/O ratio, ionization parameter, and hardness of the ionizing spectrum) at fixed metallicity as the source of the observed trends with redshift and with SFR at fixed M$_*$ at $z\sim2.3$. While this study highlights the promise of performing high-order tests of chemical evolution models at high redshifts, detailed quantitative comparisons ultimately await a full understanding of the evolution of metallicity calibrations with redshift.}, added-at = {2017-11-02T10:28:56.000+0100}, author = {Sanders, Ryan L. and Shapley, Alice E. and Kriek, Mariska and Freeman, William R. and Reddy, Naveen A. and Siana, Brian and Coil, Alison L. and Mobasher, Bahram and Davé, Romeel and Shivaei, Irene and Azadi, Mojegan and Price, Sedona H. and Leung, Gene and Fetherholf, Tara and de Groot, Laura and Zick, Tom and Fornasini, Francesca M. and Barro, Guillermo}, biburl = {https://www.bibsonomy.org/bibtex/228a21999e336776a58ba935c4938fdd2/miki}, description = {[1711.00224] The MOSDEF survey: a stellar mass-SFR-metallicity relation exists at $z\sim2.3$}, interhash = {ea3d97d629a4c3eef9a187992c6318e6}, intrahash = {28a21999e336776a58ba935c4938fdd2}, keywords = {high-z mass metallicity relation sfr}, note = {cite arxiv:1711.00224Comment: 18 pages, 7 figures, submitted to ApJ}, timestamp = {2017-11-02T10:28:56.000+0100}, title = {The MOSDEF survey: a stellar mass-SFR-metallicity relation exists at $z\sim2.3$}, url = {http://arxiv.org/abs/1711.00224}, year = 2017 }