MSA-3D: Metallicity Gradients in Galaxies at $z\sim 1$ with JWST/NIRSpec Slit-stepping Spectroscopy

Abstract

The radial gradient of gas-phase metallicity is a powerful probe of the chemical and structural evolution of star-forming galaxies, closely tied to disk formation and gas kinematics in the early universe. We present spatially resolved chemical and dynamical properties for a sample of 25 galaxies at $0.5\lesssim z\lesssim 1.7$ from the \msasd survey. These innovative observations provide 3D spectroscopy of galaxies at a spatial resolution approaching JWST's diffraction limit and a high spectral resolution of $R\simeq 2700$. The metallicity gradients measured in our galaxy sample range from $-$0.03 to 0.02 dex~kpc${}^{-1}$. Most galaxies exhibit negative or flat radial gradients, indicating lower metallicity in the outskirts or uniform metallicity throughout the entire galaxy. We confirm a tight relationship between stellar mass and metallicity gradient at $z\sim 1$ with small intrinsic scatter of 0.02 dex~kpc${}^{-1}$. Our results indicate that metallicity gradients become increasingly negative as stellar mass increases, likely because the more massive galaxies tend to be more ``disky". This relationship is consistent with the predictions from cosmological hydrodynamic zoom-in simulations with strong stellar feedback. This work presents the effort to harness the multiplexing capability of JWST NIRSpec/MSA in slit-stepping mode to map the chemical and kinematic profiles of high-redshift galaxies in large samples and at high spatial and spectral resolution.

24 pages, 6 figures, 1 table; Accepted for publication in ApJL,

References in corpus (26)

• Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory
• 3D-HST WFC3-selected Photometric Catalogs in the Five CANDELS/3D-HST Fields: Photometry, Photometric Redshifts and Stellar Masses
• The MUSE second-generation VLT instrument
• Constraining the Low-Mass Slope of the Star Formation Sequence at 0.5<z<2.5
• The KMOS^3D Survey: design, first results, and the evolution of galaxy kinematics from 0.7<z<2.7
• The SAMI Galaxy Survey: instrument specification and target selection
• Neutron Star Mergers and Nucleosynthesis of Heavy Elements
• Metallicity gradients in local field star-forming galaxies: Insights on inflows, outflows, and the coevolution of gas, stars and metals
• Mapping metallicity variations across nearby galaxy disks
• The KLEVER Survey: Spatially resolved metallicity maps and gradients in a sample of 1.2 < z < 2.5 lensed galaxies
• JWST Reveals Widespread AGN-Driven Neutral Gas Outflows in Massive z ~ 2 Galaxies
• The Grism Lens-Amplified Survey from Space (GLASS) X. Sub-kpc resolution gas-phase metallicity maps at cosmic noon behind the Hubble Frontier Fields cluster MACS1149.6+2223
• Constraining the PopIII IMF with high-z GRBs
• Semi-analytic forecasts for JWST -- VI. Simulated lightcones and galaxy clustering predictions
• Early results from GLASS-JWST. IV: Spatially resolved metallicity in a low-mass $z\sim 3$ galaxy with NIRISS
• Gas-phase metallicity gradients in galaxies at $z\sim 6-8$
• SINFONI-HiZELS: The dynamics, merger rates & metallicity gradients of `typical' star-forming galaxies at $z$ = 0.8-2.2
• The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations
• First Census of Gas-phase Metallicity Gradients of Star-forming Galaxies in Overdense Environments at Cosmic Noon
• A geostatistical analysis of multiscale metallicity variations in galaxies [I]: Introduction and comparison of high-resolution metallicity maps to an analytic metal transport model
• Spatial metallicity distribution statistics at $\lesssim 100$ pc scales in the AMUSING++ nearby galaxy sample
• Early results from GLASS-JWST. XXVII. The mass-metallicity relation in lensed field galaxies at cosmic noon with NIRISS
• The UV luminosity function at 0.6 < z < 1 from UVCANDELS
• MaNGA 8313-1901: gas accretion observed in a blue compact dwarf galaxy?
• Exploring the Gas-Phase Metallicity Gradients of Star-forming Galaxies at Cosmic Noon
• The KMOS Lens-Amplified Spectroscopic Survey (KLASS): Kinematics and clumpiness of low-mass galaxies at cosmic noon

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• The physical origin of positive metallicity radial gradients in high-redshift galaxies: insights from the FIRE-2 cosmological hydrodynamic simulations
• From order to chaos: the blurred out metallicity gradient of the Gaia-Enceladus/Sausage progenitor
• The ALPINE-CRISTAL-JWST Survey: Gas-phase abundance gradients of main sequence star-forming galaxies and their kinematics at $4<z<6$
• SILCC -- IX. The multi-phase interstellar medium at low metallicity