CEERS: Spatially Resolved UV and mid-IR Star Formation in Galaxies at 0.2 < z < 2.5: The Picture from the Hubble and James Webb Space Telescopes

Abstract

We present the mid-IR (MIR) morphologies for 64 star-forming galaxies at $0.2<z<2.5$ with stellar mass ${\mathrm{M}}_{\ast }>10^9{\mathrm{M}}_{\odot }$ using JWST MIRI observations from the Cosmic Evolution Early Release Science survey (CEERS). The MIRI bands span the MIR (7.7--21~$\mu$m), enabling us to measure the effective radii ($R_{\mathrm{eff}}$) and Sérsic indexes of these SFGs at rest-frame 6.2 and 7.7 $\mu$m, which contains strong emission from Polycyclic aromatic hydrocarbon (PAH) features, a well-established tracer of star formation in galaxies. We define a ``PAH-band'' as the MIRI bandpass that contains these features at the redshift of the galaxy. We then compare the galaxy morphologies in the PAH-bands to those in rest-frame Near-UV (NUV) using HST ACS/F435W or ACS/F606W and optical/near-IR using HST WFC3/F160W imaging from UVCANDELS and CANDELS, where the NUV-band and F160W trace the profile of (unobscured) massive stars and the stellar continuum, respectively. The $R_{\mathrm{eff}}$ of galaxies in the PAH-band are slightly smaller ($\sim$10\%) than those in F160W for galaxies with ${\mathrm{M}}_{\ast }\gtrsim 10^{9.5}{\mathrm{M}}_{\odot }$ at $z\le 1.2$, but the PAH-band and F160W have a similar fractions of light within 1 kpc. In contrast, the $R_{\mathrm{eff}}$ of galaxies in the NUV-band are larger, with lower fractions of light within 1 kpc compared to F160W for galaxies at $z\le 1.2$. Using the MIRI data to estimate the $\mathrm{SF}{\mathrm{R}}_{\mathrm{IR}}$ surface density, we find the correlation between the $\mathrm{SF}{\mathrm{R}}_{\mathrm{IR}}$ surface density and stellar mass has a steeper slope than that of the $\mathrm{SF}{\mathrm{R}}_{\mathrm{UV}}$ surface density and stellar mass, suggesting more massive galaxies having increasing amounts of obscured fraction of star formation in their inner regions. This paper demonstrates how the high-angular resolution data from JWST/MIRI can reveal new information about the morphology of obscured-star formation.

28 pages, 11 figures, Accepted by ApJ

References in corpus (40)

• Cosmic Star Formation History
• The James Webb Space Telescope
• 3D-HST+CANDELS: The Evolution of the Galaxy Size-Mass Distribution since $z=3$
• Some Aspects of Measurement Error in Linear Regression of Astronomical Data
• Formation of Massive Galaxies at High Redshift: Cold Streams, Clumpy Disks and Compact Spheroids
• An ultra-deep near-infrared spectrum of a compact quiescent galaxy at z=2.2
• 3D-HST WFC3-selected Photometric Catalogs in the Five CANDELS/3D-HST Fields: Photometry, Photometric Redshifts and Stellar Masses
• Detection of quiescent galaxies in a bicolor sequence from z=0-2
• The All-wavelength Extended Groth Strip International Survey (AEGIS) Data Sets
• Compaction and Quenching of High-z Galaxies in Cosmological Simulations: Blue and Red Nuggets
• The MOSFIRE Deep Evolution Field (MOSDEF) Survey: Rest-Frame Optical Spectroscopy for ~1500 H-Selected Galaxies at 1.37 < z < 3.8
• Evidence for Mature Bulges and an Inside-out Quenching Phase 3 Billion Years After the Big Bang
• X-CIGALE: fitting AGN/galaxy SEDs from X-ray to infrared
• CEERS Epoch 1 NIRCam Imaging: Reduction Methods and Simulations Enabling Early JWST Science Results
• The Dust Attenuation Law in Galaxies
• The SCUBA-2 Cosmology Legacy Survey: ALMA resolves the rest-frame far-infrared emission of sub-millimeter galaxies
• UVUDF: Ultraviolet Through Near-infrared Catalog and Photometric Redshifts of Galaxies in the Hubble Ultra Deep Field
• The Constant Average Relationship between Dust-obscured Star Formation and Stellar Mass from $z=0$ to $z=2.5$
• The kiloparsec-scale star formation law at redshift 4: wide-spread, highly efficient star formation in the dust-obscured starburst galaxy GN20
• Mid-IR Luminosities and UV/Optical Star Formation Rates at z<1.4
• Half-mass radii for ~7,000 galaxies at 1.0 < z < 2.5: most of the evolution in the mass-size relation is due to color gradients
• Bulge-forming galaxies with an extended rotating disk at z~2
• A Population of Massive and Evolved Galaxies at z$\ga$5
• An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: High-resolution dust continuum morphologies and the link between sub-millimetre galaxies and spheroid formation
• First Look at z > 1 Bars in the Rest-Frame Near-Infrared with JWST Early CEERS Imaging
• A spatially resolved study of cold dust, molecular gas, HII regions, and stars in the $z=2.12$ submillimeter galaxy ALESS67.1
• T-PHOT version 2.0: improved algorithms for background subtraction, local convolution, kernel registration, and new options
• Structural evolution in massive galaxies at z~2
• Revealing the Stellar Mass and Dust Distributions of Submillimeter Galaxies at Redshift 2
• The regulation of galaxy growth along the size-mass relation by star-formation, as traced by H$\alpha$ in KMOS${}^{3D}$ galaxies at 0.7 < z < 2.7
• Dissecting the size-mass and ${\Sigma }_1$-mass relations at 1.0 < z < 2.5: galaxy mass profiles and color gradients as a function of spectral shape
• HST/WFC3 grism observations of $z\sim 1$ clusters: The cluster vs. field stellar mass-size relation and evidence for size growth of quiescent galaxies from minor mergers
• CLEAR II: Evidence for Early Formation of the Most Compact Quiescent Galaxies at High Redshift
• First Light And Reionisation Epoch Simulations (FLARES) IV: The size evolution of galaxies at $z\ge 5$
• GOODS-ALMA 2.0: Starbursts in the main sequence reveal compact star formation regulating galaxy evolution prequenching
• A duality in the origin of bulges and spheroidal galaxies
• Reconstructing the Assembly of Massive Galaxies. I: The Importance of the Progenitor Effect in the Observed Properties of Quiescent Galaxies at $z\approx 2$
• The Impact of Dust on the Sizes of Galaxies in the Epoch of Reionization
• CLEAR: The Evolution of Spatially Resolved Star Formation in Galaxies between $0.5\lesssim z\lesssim 1.7$ using H$\alpha$ Emission Line Maps
• A kpc-scale resolved study of unobscured and obscured star-formation activity in normal galaxies at z = 1.5 and 2.2 from ALMA and HiZELS

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• The Size-Mass relation at Rest-Frame $1.5\mu$m from JWST/NIRCam in the COSMOS-WEB and PRIMER-COSMOS fields
• CEERS: MIRI deciphers the spatial distribution of dust-obscured star formation in galaxies at $0.1<z<2.5$
• A First Look at Spatially Resolved Star Formation at $4.8<z<6.5$ with JWST FRESCO NIRCam Slitless Spectroscopy
• Rest-Frame Near-Infrared Radial Light Profiles up to z=3 from JWST/NIRCam: Wavelength Dependence of the Sérsic Index
• Environmental impacts on the rest-frame UV size and morphology ofstar-forming galaxies at $z\sim 2$
• The tight correlation of PAH and CO emission from z~0-4
• NGDEEP: The Star Formation and Ionization Properties of Galaxies at $1.7<z<3.4$
• PRIMER: JWST/MIRI reveals the evolution of star-forming structures in galaxies at z<2.5
• Extended Enriched Gas in a Multi-Galaxy Merger at Redshift 6.7
• The JWST Emission Line Survey (JELS): The sizes and merger fraction of star-forming galaxies during the Epoch of Reionization
• A first look at a complete view of spatially resolved star formation at 1<z<1.8 with JWST NGDEEP+FRESCO slitless spectroscopy