@article{54cf6539787d4250be695781973c8565,
title = "CEERS: Spatially Resolved UV and Mid-infrared 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-infrared (MIR) morphologies for 64 star-forming galaxies (SFGs) at 0.2 < z < 2.5 with stellar mass M * > 109 M ⊙ using James Webb Space Telescope (JWST) Mid-Infrared Instrument (MIRI) observations from the Cosmic Evolution Early Release Science survey. The MIRI bands span the MIR (7.7-21 μm), enabling us to measure the effective radii (R eff) and S{\'e}rsic indexes of these SFGs at rest-frame 6.2 and 7.7 μm, 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 the rest-frame near-ultraviolet (NUV) using Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS)/F435W or ACS/F606W and optical/near-IR using HST WFC3/F160W imaging from UVCANDELS and CANDELS. The R eff of galaxies in the PAH band are slightly smaller (∼10%) than those in F160W for galaxies with M * ≳ 109.5 M ⊙ at z ≤ 1.2, but the PAH band and F160W have similar fractions of light within 1 kpc. In contrast, the R eff of galaxies in the NUV band are larger, with lower fractions of light within 1 kpc compared to F160W for galaxies at z ≤ 1.2. Using the MIRI data to estimate the SFRIR surface density, we find that the correlation between the SFRIR surface density and stellar mass has a steeper slope than that of the SFRUV 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.",
author = "Lu Shen and Casey Papovich and Guang Yang and Jasleen Matharu and Xin Wang and Benjamin Magnelli and David Elbaz and Shardha Jogee and Anahita Alavi and {Arrabal Haro}, Pablo and Backhaus, {Bren E.} and Bagley, {Micaela B.} and Bell, {Eric F.} and Laura Bisigello and Antonello Calabr{\`o} and Cooper, {M. C.} and Luca Costantin and Emanuele Daddi and Mark Dickinson and Finkelstein, {Steven L.} and Seiji Fujimoto and Mauro Giavalisco and Grogin, {Norman A.} and Yuchen Guo and Holwerda, {Benne W.} and Kartaltepe, {Jeyhan S.} and Koekemoer, {Anton M.} and Peter Kurczynski and Lucas, {Ray A.} and P{\'e}rez-Gonz{\'a}lez, {Pablo G.} and Nor Pirzkal and Laura Prichard and Marc Rafelski and Kaila Ronayne and Simons, {Raymond C.} and Ben Sunnquist and Teplitz, {Harry I.} and Trump, {Jonathan R.} and Weiner, {Benjamin J.} and Windhorst, {Rogier A.} and Yung, {L. Y.Aaron}",
note = "Funding Information: We acknowledge the hard work of our colleagues in the CEERS and UVCANDELS collaboration and everyone involved in the JWST mission. This work benefited from support from the George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University. C.P. thanks Marsha and Ralph Schilling for generous support of this research. R.A.W. acknowledges support from NASA JWST Interdisciplinary Scientist grants NAG5-12460, NNX14AN10G and 80NSSC18K0200 from GSFC. This work acknowledges support from the NASA/ESA/CSA James Webb Space Telescope through the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-03127. Support for program No. JWST-ERS01345 was provided through a grant from the STScI under NASA contract NAS5-03127. This work is based on observations with the NASA/ESAHubble Space Telescope obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555. Support for Program number HST-GO-15647 was provided through a grant from the STScI under NASA contract NAS5-26555. Publisher Copyright: {\textcopyright} 2023. The Author(s). Published by the American Astronomical Society.",
year = "2023",
month = jun,
day = "1",
doi = "10.3847/1538-4357/acc944",
language = "English (US)",
volume = "950",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "1",
}