Spatially Resolved Properties of Galaxies at 5 < z < 9 in the SMACS 0723 JWST ERO Field

Research output: Contribution to journal › Journal article › Research › peer-review

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Spatially Resolved Properties of Galaxies at 5 < z < 9 in the SMACS 0723 JWST ERO Field. / Gimenez-Arteaga, Clara; Oesch, Pascal A.; Brammer, Gabriel B.; Valentino, Francesco; Mason, Charlotte A.; Weibel, Andrea; Barrufet, Laia; Fujimoto, Seiji; Heintz, Kasper E.; Nelson, Erica J.; Strait, Victoria B.; Suess, Katherine A.; Gibson, Justus.

In: Astrophysical Journal, Vol. 948, No. 2, 126, 01.05.2023.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Gimenez-Arteaga, C, Oesch, PA, Brammer, GB, Valentino, F, Mason, CA, Weibel, A, Barrufet, L, Fujimoto, S, Heintz, KE, Nelson, EJ, Strait, VB, Suess, KA & Gibson, J 2023, 'Spatially Resolved Properties of Galaxies at 5 < z < 9 in the SMACS 0723 JWST ERO Field', Astrophysical Journal, vol. 948, no. 2, 126. https://doi.org/10.3847/1538-4357/acc5ea

APA

Gimenez-Arteaga, C., Oesch, P. A., Brammer, G. B., Valentino, F., Mason, C. A., Weibel, A., Barrufet, L., Fujimoto, S., Heintz, K. E., Nelson, E. J., Strait, V. B., Suess, K. A., & Gibson, J. (2023). Spatially Resolved Properties of Galaxies at 5 < z < 9 in the SMACS 0723 JWST ERO Field. Astrophysical Journal, 948(2), [126]. https://doi.org/10.3847/1538-4357/acc5ea

Vancouver

Gimenez-Arteaga C, Oesch PA, Brammer GB, Valentino F, Mason CA, Weibel A et al. Spatially Resolved Properties of Galaxies at 5 < z < 9 in the SMACS 0723 JWST ERO Field. Astrophysical Journal. 2023 May 1;948(2). 126. https://doi.org/10.3847/1538-4357/acc5ea

Author

Gimenez-Arteaga, Clara ; Oesch, Pascal A. ; Brammer, Gabriel B. ; Valentino, Francesco ; Mason, Charlotte A. ; Weibel, Andrea ; Barrufet, Laia ; Fujimoto, Seiji ; Heintz, Kasper E. ; Nelson, Erica J. ; Strait, Victoria B. ; Suess, Katherine A. ; Gibson, Justus. / Spatially Resolved Properties of Galaxies at 5 < z < 9 in the SMACS 0723 JWST ERO Field. In: Astrophysical Journal. 2023 ; Vol. 948, No. 2.

Bibtex

@article{f821c49ed64d4f0b8ba1344b484dbafd,
title = "Spatially Resolved Properties of Galaxies at 5 < z < 9 in the SMACS 0723 JWST ERO Field",
abstract = "We present the first spatially resolved measurements of galaxy properties in the JWST ERO SMACS 0723 field. We perform a comprehensive analysis of five 5 < z < 9 galaxies with spectroscopic redshifts from NIRSpec observations. We perform spatially resolved spectral energy distribution fitting with Bagpipes, using six NIRCam imaging bands spanning the wavelength range 0.8-5 mu m. This approach allows us to study the internal structure and assembly of the first generations of galaxies. We find clear gradients both in the empirical color maps and in most of the estimated physical parameters. We find regions of considerably different specific star formation rates across each galaxy, which points to very bursty star formation happening on small scales, not galaxy-wide. The integrated light is dominated by these bursty regions, which exhibit strong line emission, with the equivalent width of [O iii]+H beta reaching up to similar to 3000-4000 angstrom rest frame. Studying these galaxies in an integrated approach yields extremely young inferred ages of the stellar population (",
keywords = "STAR-FORMING GALAXIES, STELLAR MASS FUNCTIONS, LESS-THAN, LY-ALPHA, FORMATION HISTORIES, H-ALPHA, RELEASE, 1ST, SPECTROSCOPY, EMISSION",
author = "Clara Gimenez-Arteaga and Oesch, {Pascal A.} and Brammer, {Gabriel B.} and Francesco Valentino and Mason, {Charlotte A.} and Andrea Weibel and Laia Barrufet and Seiji Fujimoto and Heintz, {Kasper E.} and Nelson, {Erica J.} and Strait, {Victoria B.} and Suess, {Katherine A.} and Justus Gibson",
year = "2023",
month = may,
day = "1",
doi = "10.3847/1538-4357/acc5ea",
language = "English",
volume = "948",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "Institute of Physics Publishing, Inc",
number = "2",

}

RIS

TY - JOUR

T1 - Spatially Resolved Properties of Galaxies at 5 < z < 9 in the SMACS 0723 JWST ERO Field

AU - Gimenez-Arteaga, Clara

AU - Oesch, Pascal A.

AU - Brammer, Gabriel B.

AU - Valentino, Francesco

AU - Mason, Charlotte A.

AU - Weibel, Andrea

AU - Barrufet, Laia

AU - Fujimoto, Seiji

AU - Heintz, Kasper E.

AU - Nelson, Erica J.

AU - Strait, Victoria B.

AU - Suess, Katherine A.

AU - Gibson, Justus

PY - 2023/5/1

Y1 - 2023/5/1

N2 - We present the first spatially resolved measurements of galaxy properties in the JWST ERO SMACS 0723 field. We perform a comprehensive analysis of five 5 < z < 9 galaxies with spectroscopic redshifts from NIRSpec observations. We perform spatially resolved spectral energy distribution fitting with Bagpipes, using six NIRCam imaging bands spanning the wavelength range 0.8-5 mu m. This approach allows us to study the internal structure and assembly of the first generations of galaxies. We find clear gradients both in the empirical color maps and in most of the estimated physical parameters. We find regions of considerably different specific star formation rates across each galaxy, which points to very bursty star formation happening on small scales, not galaxy-wide. The integrated light is dominated by these bursty regions, which exhibit strong line emission, with the equivalent width of [O iii]+H beta reaching up to similar to 3000-4000 angstrom rest frame. Studying these galaxies in an integrated approach yields extremely young inferred ages of the stellar population (

AB - We present the first spatially resolved measurements of galaxy properties in the JWST ERO SMACS 0723 field. We perform a comprehensive analysis of five 5 < z < 9 galaxies with spectroscopic redshifts from NIRSpec observations. We perform spatially resolved spectral energy distribution fitting with Bagpipes, using six NIRCam imaging bands spanning the wavelength range 0.8-5 mu m. This approach allows us to study the internal structure and assembly of the first generations of galaxies. We find clear gradients both in the empirical color maps and in most of the estimated physical parameters. We find regions of considerably different specific star formation rates across each galaxy, which points to very bursty star formation happening on small scales, not galaxy-wide. The integrated light is dominated by these bursty regions, which exhibit strong line emission, with the equivalent width of [O iii]+H beta reaching up to similar to 3000-4000 angstrom rest frame. Studying these galaxies in an integrated approach yields extremely young inferred ages of the stellar population (

KW - STAR-FORMING GALAXIES

KW - STELLAR MASS FUNCTIONS

KW - LESS-THAN

KW - LY-ALPHA

KW - FORMATION HISTORIES

KW - H-ALPHA

KW - RELEASE

KW - 1ST

KW - SPECTROSCOPY

KW - EMISSION

U2 - 10.3847/1538-4357/acc5ea

DO - 10.3847/1538-4357/acc5ea

M3 - Journal article

VL - 948

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

M1 - 126

ER -

ID: 355106997