Gas-phase Metallicity as a Diagnostic of the Drivers of Star-formation on Different Spatial Scales

Abstract

We examine the correlations of star formation rate (SFR) and gas-phase metallicity $Z$. We first predict how the SFR, cold gas mass and $Z$ will change with variations in inflow rate or in star-formation efficiency (SFE) in a simple gas-regulator framework. The changes $\Delta \log$SFR and $\Delta \log Z$, are found to be negatively (positively) correlated when driving the gas-regulator with time-varying inflow rate (SFE). We then study the correlation of $\Delta \log$sSFR (specific SFR) and $\Delta \log$(O/H) from observations, at both $\sim$100 pc and galactic scales, based on two 2-dimensional spectroscopic surveys with different spatial resolutions, MAD and MaNGA. After taking out the overall mass and radial dependences, which may reflect changes in inflow gas metallicity and/or outflow mass-loading, we find that $\Delta \log$sSFR and $\Delta \log$(O/H) on galactic are found to be negatively correlated, but $\Delta \log$sSFR and $\Delta \log$(O/H) are positively correlated on $\sim$100 pc scales within galaxies. If we assume that the variations across the population reflect temporal variations in individual objects, we conclude that variations in the star formation rate are primarily driven by time-varying inflow at galactic scales, and driven by time-varying SFE at $\sim$100 pc scales. We build a theoretical framework to understand the correlation between SFR, gas mass and metallicity, as well as their variability, which potentially uncovers the relevant physical processes of star formation at different scales.

arXiv comment36 pages and 19 figures, accepted by ApJ

References in corpus (124)

• Stellar population synthesis at the resolution of 2003
• Galactic Stellar and Substellar Initial Mass Function
• On the variation of the Initial Mass Function
• The Global Schmidt Law in Star Forming Galaxies
• The Host Galaxies of AGN
• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• The Origin of the Mass--Metallicity Relation: Insights from 53,000 Star-Forming Galaxies in the SDSS
• The physical properties of star forming galaxies in the low redshift universe
• Theoretical Modeling of Starburst Galaxies
• The 2.5 m Telescope of the Sloan Digital Sky Survey
• Parametric Recovery of Line-of-Sight Velocity Distributions from Absorption-Line Spectra of Galaxies via Penalized Likelihood
• The Star Formation Efficiency in Nearby Galaxies: Measuring Where Gas Forms Stars Effectively
• The Star Formation Law in Nearby Galaxies on Sub-Kpc Scales
• [O III]/[N II] as an Abundance Indicator at High Redshift
• Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory
• UV Star Formation Rates in the Local Universe
• Multiwavelength study of massive galaxies at z~2. I. Star formation and galaxy growth
• First results from the IllustrisTNG simulations: the galaxy color bimodality
• Metallicity Calibrations and the Mass-Metallicity Relation for Star-Forming Galaxies
• CALIFA, the Calar Alto Legacy Integral Field Area survey: I. Survey presentation
• Using Strong Lines to Estimate Abundances in Extragalactic HII Regions and Starburst Galaxies
• A fundamental relation between mass, SFR and metallicity in local and high redshift galaxies
• The Multi-Object, Fiber-Fed Spectrographs for SDSS and the Baryon Oscillation Spectroscopic Survey
• AMAZE. I. The evolution of the mass-metallicity relation at z>3
• Gas-regulation of galaxies: the evolution of the cosmic sSFR, the metallicity-mass-SFR relation and the stellar content of haloes
• The physics driving the cosmic star formation history
• The SAURON project - V. Integral-field emission-line kinematics of 48 elliptical and lenticular galaxies
• Metallicities of 0.3<z<1.0 Galaxies in the GOODS-North Field
• Molecular Gas and Star Formation in Nearby Disk Galaxies
• Dust-Corrected Star Formation Rates of Galaxies. II. Combinations of Ultraviolet and Infrared Tracers
• The Impact of cold gas accretion above a mass floor on galaxy scaling relations
• The O3N2 and N2 abundance indicators revisited: improved calibrations based on CALIFA and Te-based literature data
• The Sydney-AAO Multi-object Integral field spectrograph (SAMI)
• The Mass-Metallicity Relation with the Direct Method on Stacked Spectra of SDSS Galaxies
• An Analytic Model for the Evolution of the Stellar, Gas, and Metal Content of Galaxies
• The Origin of the Galaxy Mass-Metallicity Relation and Implications for Galactic Outflows
• The Gemini Deep Deep Survey. VII. The Redshift Evolution of the Mass-Metallicity Relation
• Galaxy Evolution in Cosmological Simulations with Outflows II: Metallicities and Gas Fractions
• A fundamental plane for field star-forming galaxies
• The Mass-Metallicity and the Fundamental Metallicity Relation revisited on a fully Te-based abundance scale for galaxies
• The Metallicity-Luminosity Relation, Effective Yields, and Metal Loss in Spiral and Irregular Galaxies
• Clues to the Origin of the Mass-Metallicity Relation: Dependence on Star Formation Rate and Galaxy Size
• New calibrations for abundance determinations in HII regions
• SDSS IV MaNGA - Metallicity and nitrogen abundance gradients in local galaxies
• The impact of the nitrogen-to-oxygen ratio on ionized nebulae diagnostics based on [NII] emission lines
• The star formation history of Seyfert 2 nuclei
• New Strong Line Abundance Diagnostics for \HII Regions: Effects of $\kappa$-Distributed Electron Energies and New Atomic Data
• The lifecycle of molecular clouds in nearby star-forming disc galaxies
• Chemical abundances in high-redshift galaxies: A powerful new emission line diagnostic
• SDSS-IV/MaNGA: Spectrophotometric Calibration Technique
• Reconstructing the Subsurface Three-Dimensional Magnetic Structure of A Solar Active Region Using SDO/HMI Observations
• The Nature of LINER-like Emission in Red Galaxies
• The Origin and Evolution of the Mass-Metallicity Relationship for Galaxies: Results from Cosmological N-Body Simulations
• Fast and inefficient star formation due to short-lived molecular clouds and rapid feedback
• Stellar populations dominated by massive stars in dusty starburst galaxies across cosmic time
• SDSS-IV MaNGA: The Impact of Diffuse Ionized Gas on Emission-line Ratios, Interpretation of Diagnostic Diagrams, and Gas Metallicity Measurements
• How stellar feedback simultaneously regulates star formation and drives outflows
• Metallicity Gradients in Disks: Do Galaxies Form Inside-Out?
• An uncertainty principle for star formation. I. Why galactic star formation relations break down below a certain spatial scale
• Star formation sustained by gas accretion
• Stellar populations of early-type galaxies in different environments II. Ages and metallicities
• The Spatially Resolved Star Formation Law from Integral Field Spectroscopy: VIRUS-P Observations of NGC 5194
• Mixing Time Scales in a Supernova-Driven Interstellar Medium
• SDSS-IV MaNGA: Spatially resolved star formation histories in galaxies as a function of galaxy mass and type
• The Survey for Ionization in Neutral-Gas Galaxies: III. Diffuse, Warm Ionized Medium and Escape of Ionizing Radiation
• A fundamental relation between the metallicity, gas content, and stellar mass of local galaxies
• CHAOS I: Direct Chemical Abundances for HII Regions in NGC 628
• A Possible Origin of the Mass-Metallicity Relation of Galaxies
• A Multiwavelength Optical Emission Line Survey of Warm Ionized Gas in the Galaxy
• Mapping metallicity variations across nearby galaxy disks
• Extended Schmidt Law: Role Of Existing Stars In Current Star Formation
• IZI: Inferring the Gas Phase Metallicity (Z) and Ionization Parameter (q) of Ionized Nebulae using Bayesian Statistics
• ISM excitation and metallicity of star-forming galaxies at z~3.3 from near-IR spectroscopy
• The oxygen abundance in the inner HII regions of M101. Implications for the calibration of strong-line metallicity indicators
• The physics of the fundamental metallicity relation
• "Direct" Gas-Phase Metallicity in Local Analogs of High-Redshift Galaxies: Empirical Metallicity Calibrations for High-Redshift Star-Forming Galaxies
• The Mass-Metallicity Relation revisited with CALIFA
• The GALEX Arecibo SDSS Survey V: The Relation between the HI Content of Galaxies and Metal Enrichment at their Outskirts
• A new scaling relation for HII regions in spiral galaxies: unveiling the true nature of the mass-metallicity relation
• Surface density effects in quenching: cause or effect?
• Abundance scaling in stars, nebulae and galaxies
• SDSS IV MaNGA: The global and local stellar mass assemby histories of galaxies
• Stochastic modelling of star-formation histories II: star-formation variability from molecular clouds and gas inflow
• The Emission Line Properties of Gravitationally-lensed 1.5 < z < 5 Galaxies
• Average Metallicity and Star Formation Rate of Lya Emitters Probed by a Triple Narrow-Band Survey
• A Critical Look at the Mass-Metallicity-SFR Relation in the Local Universe. I. An Improved Analysis Framework and Confounding Systematics
• The evolution of the mass-metallicity relation in galaxies of different morphological types
• The warm ionized gas in CALIFA early-type galaxies: 2D emission-line patterns and kinematics for 32 galaxies
• Do galaxy global relationships emerge from local ones? The SDSS IV MaNGA surface mass density-metallicity relation
• Determining Star Formation Timescale and Pattern Speed in Nearby Spiral Galaxies
• The MUSE Atlas of Disks (MAD): Resolving Star Formation Rates and Gas Metallicities on < 100pc Scales
• A 50 pc scale view of star formation efficiency across NGC 628
• Predictions for the Angular Dependence of Gas Mass Flow Rate and Metallicity in the Circumgalactic Medium
• Fundamental metallicity relation in CALIFA, SDSS-IV MaNGA and high-z galaxies
• The SAMI Galaxy Survey: Exploring the gas-phase Mass-Metallicity Relation
• The recent star formation history of the Hipparcos solar neighbourhood
• The Spectacular Ionized Interstellar Medium of NGC55
• P-MaNGA: Gradients in Recent Star Formation Histories as Diagnostics for Galaxy Growth and Death
• SDSS-IV MaNGA: Properties of galaxies with kinematically decoupled stellar and gaseous components
• The environmental dependence of the chemical properties of star-forming galaxies
• Separate ways: The Mass-Metallicity Relation does not strongly correlate with Star Formation Rate in SDSS-IV MaNGA galaxies
• From 'bathtub' galaxy evolution models to metallicity gradients
• A Plausible Galactic Spiral Pattern and its Rotation Speed
• Oxygen Gas Abundances at z~1.4: Implications for the Chemical Evolution History of Galaxies
• Galaxy metallicities depend primarily on stellar mass and molecular gas mass
• The surface abundances of Red Supergiants at core-collapse
• On the Elevation and Suppression of Star Formation within Galaxies
• On the recent star formation history of the Milky Way disk
• Anomalously low metallicity regions in MaNGA star-forming galaxies: Accretion Caught in Action?
• Azimuthal variations of gas-phase oxygen abundance in NGC 2997
• SDSS-IV MaNGA: Star formation cessation in low-redshift galaxies I. Dependence on stellar mass and structural properties
• Characterizing the local relation between star formation rate and gas-phase metallicity in MaNGA spiral galaxies
• SDSS-IV MaNGA: Spatially resolved star-formation histories and the connection to galaxy physical properties
• The Variability of the Star Formation Rate in Galaxies: I. Star Formation Histories Traced by EW(H$\alpha$) and EW(H${\delta }_A$)
• The metallicity properties of zCOSMOS galaxies at 0.2<z<0.8
• Connecting Compact Star-forming and Extended Star-forming Galaxies at Low-redshift: Implications for Galaxy Compaction and Quenching
• Galaxy Interactions in Compact Groups II: abundance and kinematic anomalies in HCG 91c
• Local anti-correlation between star-formation rate and gas-phase metallicity in disk galaxies
• The Mass-Metallicity Relation at $z\sim 0.8$: Redshift Evolution and Parameter Dependency
• Elevation or Suppression? The Resolved Star Formation Main Sequence of Galaxies with Two Different Assembly Modes
• What determines the local metallicity of galaxies: global stellar mass, local stellar mass surface density or star formation rate?
• The Variability of Star Formation Rate in Galaxies: II. Power Spectrum Distribution on the Main Sequence
• A Local Leaky-box Model for the Local Stellar Surface Density - Gas Surface Density - Gas Phase Metallicity Relation
• The Local Star Formation Rate Surface Density And Metallicity Relation For Star-forming Galaxies

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• Large Metallicity Variations in the Galactic Interstellar Medium
• About Metallicity Variations in the Local Galactic Interstellar Medium
• The Origin of Exponential Star-forming Disks
• The Gas-phase Metallicity Profiles of Star-forming Galaxies in the Modified Accretion Disk Framework
• A geostatistical analysis of multiscale metallicity variations in galaxies [I]: Introduction and comparison of high-resolution metallicity maps to an analytic metal transport model
• SIMBA-C: An updated chemical enrichment model for galactic chemical evolution in the SIMBA simulation
• How well do local relations predict gas-phase metallicity gradients? Results from SDSS-IV MaNGA
• The Role of Inner HI Mass in Regulating the Scatter of the Mass-Metallicity Relation
• Revisiting the fundamental metallicity relation with observation and simulation
• The resolved chemical abundance properties within the interstellar medium of star-forming galaxies at $\text{z}\approx 1.5$
• MusE GAs FLOw and Wind (MEGAFLOW) IX. The impact of gas flows on the relations between the mass, star formation rate and metallicity of galaxies
• The Similar Signatures of Coplanar Gas Inflow and Disk Warps in Galactic Gas Kinematic Maps
• The origin of correlations between mass, metallicity and morphology in galaxies from the EAGLE simulation
• Insights on Metal Enrichment and Environmental Effect at $z\approx 5-7$ with JWST ASPIRE/EIGER and Chemical Evolution Model
• A two-phase model of galaxy formation: III. The formation of globular clusters
• A negative stellar mass$-$gaseous metallicity gradient relation of dwarf galaxies modulated by stellar feedback
• Rapid, out of equilibrium metal enrichment indicated by a flat mass-metallicity relation at z~6 from NIRCam grism spectroscopy
• The origin of the galaxy size-stellar metallicity relation: A semi-analytical perspective
• Fundamental relation in isolated galaxies, pairs, and triplets in the local universe
• From Halos to Galaxies. X: Decoding Galaxy SEDs with Physical Priors and Accurate Star Formation History Reconstruction
• A semi-analytical perspective on massive red galaxies: I. Assembly history, environment & redshift evolution
• SDSS-IV MaNGA: Exploring the local scaling relations for N/O