Early results from GLASS-JWST. IV: Spatially resolved metallicity in a low-mass $z\sim 3$ galaxy with NIRISS

Abstract

We report the first gas-phase metallicity map of a distant galaxy measured with the James Webb Space Telescope (JWST). We use the NIRISS slitless spectroscopy acquired by the GLASS Early Release Science program to spatially resolve the rest-frame optical nebular emission lines in a gravitationally lensed galaxy at $z=3.06$ behind the Abell 2744 galaxy cluster. This galaxy (dubbed GLASS-Zgrad1) has stellar mass $\sim 10^{8.6}{M}_{\odot }$, instantaneous star formation rate $\sim 8.6$ $M_{\odot }$/yr (both corrected for lensing magnification), and global metallicity one-fourth solar. From its emission line maps ([O III], H$\beta$, H$\gamma$, [Ne III], and [O II]) we derive its spatial distribution of gas-phase metallicity using a well-established forward-modeling Bayesian inference method. The exquisite resolution and sensitivity of JWST/NIRISS, combined with lensing magnification, enable us to resolve this $z\sim 3$ dwarf galaxy in $\gtrsim$50 resolution elements with sufficient signal, an analysis hitherto not possible. We find that the radial metallicity gradient of GLASS-Zgrad1 is strongly inverted (i.e. positive): $\Delta \log (O/H)/\Delta r$ = $0.165\pm 0.023$ $\mathrm{dex}\mathrm{kp}{\mathrm{c}}^{-1}$. This inverted gradient may be due to tidal torques induced by a massive nearby ($\sim$15 kpc projected) galaxy, which can cause inflows of metal-poor gas into the central regions of GLASS-Zgrad1. These first results showcase the power of JWST wide-field slitless spectroscopic modes to resolve the mass assembly and chemical enrichment of low-mass galaxies in and beyond the peak epoch of cosmic star formation ($z\gtrsim 2$). Reaching masses $\lesssim 10^9{M}_{\odot }$ at these redshifts is especially valuable to constrain the effects of galactic feedback and environment, and is possible only with JWST's new capabilities.

arXiv commentAccepted to ApJL. 11 pages, 4 figures, and 1 table

References in corpus (61)

• Stellar population synthesis at the resolution of 2003
• The chemical composition of the Sun
• Galactic Stellar and Substellar Initial Mass Function
• Star Formation in Galaxies Along the Hubble Sequence
• The Dust Content and Opacity of Actively Star-Forming Galaxies
• Cosmic Star Formation History
• Small-Scale Challenges to the $\Lambda$CDM Paradigm
• A Highly Consistent Framework for the Evolution of the Star-Forming "Main Sequence" from z~0-6
• Physical Models of Galaxy Formation in a Cosmological Framework
• Adaptive spatial binning of integral-field spectroscopic data using Voronoi tessellations
• Inferring the star-formation histories of massive quiescent galaxies with BAGPIPES: Evidence for multiple quenching mechanisms
• The 3D-HST Survey: Hubble Space Telescope WFC3/G141 grism spectra, redshifts, and emission line measurements for $\sim 100,000$ galaxies
• 3D-HST: A wide-field grism spectroscopic survey with the Hubble Space Telescope
• De Re Metallica: The cosmic chemical evolution of galaxies
• The Frontier Fields: Survey Design
• Understanding Galaxy Evolution through Emission Lines
• A characteristic oxygen abundance gradient in galaxy disks unveiled with CALIFA
• Smooth(er) Stellar Mass Maps in CANDELS: Constraints on the Longevity of Clumps in High-redshift Star-forming Galaxies
• SDSS IV MaNGA - Metallicity and nitrogen abundance gradients in local galaxies
• The GLASS James Webb Space Telescope Early Release Science Program. I. Survey Design and Release Plans
• Gas accretion as the origin of chemical abundance gradients in distant galaxies
• Galaxy Mergers and the Mass-Metallicity Relation: Evidence for Nuclear Metal Dilution and Flattened Gradients from Numerical Simulations
• The MOSDEF Survey: Excitation Properties of $z\sim 2.3$ Star-forming Galaxies
• The SINS/zC-SINF survey of z~2 galaxy kinematics: SINFONI adaptive optics-assisted data and kiloparsec-scale emission line properties
• Metallicity and Nuclear Star Formation in Nearby Galaxy Pairs: Evidence for Tidally Induced Gas Flows
• Adaptive Binning of X-ray data with Weighted Voronoi Tesselations
• The Metallicity Evolution of Interacting Galaxies
• Lens models and magnification maps of the six Hubble Frontier Fields clusters
• AGN Emission Line Diagnostics and the Mass-Metallicity Relation up to Redshift z~2: the Impact of Selection Effects and Evolution
• Constraining Sub-Grid Physics with High-Redshift Spatially-Resolved Metallicity Distributions
• The Origin and Evolution of Metallicity Gradients: Probing the Mode of Mass Assembly at z=2
• The MOSDEF Survey: Optical AGN Diagnostics at z~2.3
• "Direct" Gas-Phase Metallicity in Local Analogs of High-Redshift Galaxies: Empirical Metallicity Calibrations for High-Redshift Star-Forming Galaxies
• The Hubble Sequence beyond z=2 for Massive Galaxies: Contrasting Large Star-Forming and Compact Quiescent Galaxies
• The ASTRODEEP Frontier Fields Catalogues: I - Multiwavelength photometry of Abell-2744 and MACS-J0416
• The Near Infrared Imager and Slitless Spectrograph for the James Webb Space Telescope -- II. Wide Field Slitless Spectroscopy
• The KLEVER Survey: Spatially resolved metallicity maps and gradients in a sample of 1.2 < z < 2.5 lensed galaxies
• Gas-phase metallicity gradients of TNG50 star-forming galaxies
• The SAMI Galaxy Survey: Spatially Resolved Metallicity and Ionization Mapping
• A Keck Survey of Gravitationally-Lensed Star-Forming Galaxies: High Spatial Resolution Studies of Kinematics and Metallicity Gradients
• Why do high-redshift galaxies show diverse gas-phase metallicity gradients?
• Temperature-based metallicity measurements at z=0.8: direct calibration of strong-line diagnostics at intermediate redshift
• The physics of gas phase metallicity gradients in galaxies
• Systematics in Metallicity Gradient Measurements I : Angular Resolution, Signal-to-Noise and Annuli Binning
• CLEAR: The Gas-Phase Metallicity Gradients of Star-Forming Galaxies at 0.6 < z < 2.6
• Discovery of Strongly Inverted Metallicity Gradients in Dwarf Galaxies at $z$$\sim$2
• 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
• Abundance gradients in spiral disks: is the gradient inversion at high redshift real?
• The Grism Lens-Amplified Survey from Space (GLASS). II. Gas-phase metallicity and radial gradients in an interacting system at z~2
• The oxygen abundance gradients in the gas discs of galaxies in the EAGLE simulation
• The Grism Lens-Amplified Survey from Space (GLASS). IV. Mass reconstruction of the lensing cluster Abell 2744 from frontier field imaging and GLASS spectroscopy
• A Census of Sub-kiloparsec Resolution Metallicity Gradients in Star-forming Galaxies at Cosmic Noon from HST Slitless Spectroscopy
• The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations
• Ultra-deep Ks-band Imaging of the Hubble Frontier Fields
• GASP and MaNGA surveys shed light on the enigma of the gas metallicity gradients in disk galaxies
• The mass-metallicity relation at cosmic noon in overdense environments: first results from the MAMMOTH-Grism HST slitless spectroscopic survey
• ALMA Lensing Cluster Survey: ALMA-Herschel Joint Study of Lensed Dusty Star-Forming Galaxies across $z\simeq 0.5-6$
• The time evolution of the Milky Way's oxygen abundance gradient
• 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
• A geostatistical analysis of multiscale metallicity variations in galaxies [II]: Predicting the metallicities of Hii and diffuse ionised gas regions via universal kriging

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