Spatially Resolved Stellar Populations of 0.3 < z < 6.0 Galaxies in WHL 0137–08 and MACS 0647+70 Clusters as Revealed by JWST: How Do Galaxies Grow and Quench over Cosmic Time?

Abdurro’uf; Dan Coe; Intae Jung; Henry C. Ferguson; Gabriel Brammer; Kartheik G. Iyer; Larry D. Bradley; Pratika Dayal; Rogier A. Windhorst; Adi Zitrin; Ashish Kumar Meena; Masamune Oguri; Jose M. Diego; Vasily Kokorev; Paola Dimauro; Angela Adamo; Christopher J. Conselice; Brian Welch; Eros Vanzella; Tiger Yu-Yang Hsiao; Xinfeng Xu; Namrata Roy; Celia R. Mulcahey

doi:10.3847/1538-4357/acba06

The Astrophysical Journal (Jan 2023)

Spatially Resolved Stellar Populations of 0.3 < z < 6.0 Galaxies in WHL 0137–08 and MACS 0647+70 Clusters as Revealed by JWST: How Do Galaxies Grow and Quench over Cosmic Time?

Abdurro’uf,
Dan Coe,
Intae Jung,
Henry C. Ferguson,
Gabriel Brammer,
Kartheik G. Iyer,
Larry D. Bradley,
Pratika Dayal,
Rogier A. Windhorst,
Adi Zitrin,
Ashish Kumar Meena,
Masamune Oguri,
Jose M. Diego,
Vasily Kokorev,
Paola Dimauro,
Angela Adamo,
Christopher J. Conselice,
Brian Welch,
Eros Vanzella,
Tiger Yu-Yang Hsiao,
Xinfeng Xu,
Namrata Roy,
Celia R. Mulcahey

Affiliations

Abdurro’uf: ORCiD; Center for Astrophysical Sciences, Department of Physics and Astronomy, The Johns Hopkins University , 3400 N Charles Street, Baltimore, MD 21218, USA [email protected]; Space Telescope Science Institute (STScI) , 3700 San Martin Drive, Baltimore, MD 21218, USA
Dan Coe: ORCiD; Center for Astrophysical Sciences, Department of Physics and Astronomy, The Johns Hopkins University , 3400 N Charles Street, Baltimore, MD 21218, USA [email protected]; Space Telescope Science Institute (STScI) , 3700 San Martin Drive, Baltimore, MD 21218, USA; Association of Universities for Research in Astronomy (AURA), Inc . for the European Space Agency (ESA), USA
Intae Jung: ORCiD; Space Telescope Science Institute (STScI) , 3700 San Martin Drive, Baltimore, MD 21218, USA
Henry C. Ferguson: ORCiD; Space Telescope Science Institute (STScI) , 3700 San Martin Drive, Baltimore, MD 21218, USA
Gabriel Brammer: ORCiD; Cosmic Dawn Center (DAWN) , Copenhagen, Denmark; Niels Bohr Institute, University of Copenhagen , Jagtvej 128, Copenhagen, Denmark
Kartheik G. Iyer: ORCiD; Columbia Astrophysics Laboratory, Columbia University , 550 West 120th Street, New York, NY 10027, USA
Larry D. Bradley: ORCiD; Space Telescope Science Institute (STScI) , 3700 San Martin Drive, Baltimore, MD 21218, USA
Pratika Dayal: ORCiD; Kapteyn Astronomical Institute, University of Groningen , P.O. Box 800, 9700 AV Groningen, The Netherlands
Rogier A. Windhorst: ORCiD; School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287-1404, USA
Adi Zitrin: ORCiD; Physics Department, Ben-Gurion University of the Negev , P.O. Box 653, Be’er-Sheva 84105, Israel
Ashish Kumar Meena: ORCiD; Physics Department, Ben-Gurion University of the Negev , P.O. Box 653, Be’er-Sheva 84105, Israel
Masamune Oguri: ORCiD; Center for Frontier Science, Chiba University , 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan; Department of Physics, Graduate School of Science, Chiba University , 1-33 Yayoi-Cho, Inage-Ku, Chiba 263-8522, Japan
Jose M. Diego: ORCiD; Instituto de Física de Cantabria (CSIC-UC) . Avda. Los Castros s/n. E-39005 Santander, Spain
Vasily Kokorev: ORCiD; Kapteyn Astronomical Institute, University of Groningen , P.O. Box 800, 9700 AV Groningen, The Netherlands
Paola Dimauro: ORCiD; INAF—Osservatorio Astronomico di Roma , via di Frascati 33, I-00078 Monte Porzio Catone, Italy
Angela Adamo: ORCiD; Department of Astronomy, Oskar Klein Centre, Stockholm University, AlbaNova University Centre , SE-106 91 Stockholm, Sweden
Christopher J. Conselice: ORCiD; Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester UK
Brian Welch: ORCiD; Department of Astronomy, University of Maryland , College Park, MD 20742, USA; Observational Cosmology Lab, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA; Center for Research and Exploration in Space Science and Technology , NASA/GSFC, Greenbelt, MD 20771, USA
Eros Vanzella: ORCiD; INAF—OAS, Osservatorio di Astrofisica e Scienza dello Spazio di Bologna , via Gobetti 93/3, I-40129 Bologna, Italy
Tiger Yu-Yang Hsiao: ORCiD; Center for Astrophysical Sciences, Department of Physics and Astronomy, The Johns Hopkins University , 3400 N Charles Street, Baltimore, MD 21218, USA [email protected]
Xinfeng Xu: ORCiD; Center for Astrophysical Sciences, Department of Physics and Astronomy, The Johns Hopkins University , 3400 N Charles Street, Baltimore, MD 21218, USA [email protected]
Namrata Roy: ORCiD; Center for Astrophysical Sciences, Department of Physics and Astronomy, The Johns Hopkins University , 3400 N Charles Street, Baltimore, MD 21218, USA [email protected]
Celia R. Mulcahey: ORCiD; Center for Astrophysical Sciences, Department of Physics and Astronomy, The Johns Hopkins University , 3400 N Charles Street, Baltimore, MD 21218, USA [email protected]

DOI: https://doi.org/10.3847/1538-4357/acba06
Journal volume & issue: Vol. 945, no. 2
p. 117

Abstract

Read online

We study the spatially resolved stellar populations of 444 galaxies at 0.3 < z < 6.0 in two clusters (WHL 0137–08 and MACS 0647+70) and a blank field, combining imaging data from the Hubble Space Telescope and JWST to perform spatially resolved spectral energy distribution (SED) modeling using piXedfit . The high spatial resolution of the imaging data combined with magnification from gravitational lensing in the cluster fields allows us to resolve a large fraction of our galaxies (109) to subkiloparsec scales. At redshifts around cosmic noon and higher (2.5 ≲ z ≲ 6.0), we find mass-doubling times to be independent of radius, inferred from flat specific star formation rate (sSFR) radial profiles and similarities between the half-mass and half-SFR radii. At lower redshifts (1.5 ≲ z ≲ 2.5), a significant fraction of our star-forming galaxies shows evidence for nuclear starbursts, inferred from a centrally elevated sSFR and a much smaller half-SFR radius compared to the half-mass radius. At later epochs, we find more galaxies suppress star formation in their centers but are still actively forming stars in the disk. Overall, these trends point toward a picture of inside-out galaxy growth consistent with theoretical models and simulations. We also observe a tight relationship between the central mass surface density and global stellar mass with ∼0.38 dex scatter. Our analysis demonstrates the potential of spatially resolved SED analysis with JWST data. Future analysis with larger samples will be able to further explore the assembly of galaxy mass and the growth of their structures.

Published in The Astrophysical Journal

ISSN: 1538-4357 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Astronomy: Astrophysics
Website: https://iopscience.iop.org/journal/0004-637X

About the journal

Abstract

Keywords