Early Results From GLASS-JWST. XII. The Morphology of Galaxies at the Epoch of Reionization
Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt
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Early Results From GLASS-JWST. XII. The Morphology of Galaxies at the Epoch of Reionization. / Treu, T.; Calabro, A.; Castellano, M.; Leethochawalit, N.; Merlin, E.; Fontana, A.; Yang, L.; Morishita, T.; Trenti, M.; Dressler, A.; Mason, C.; Paris, D.; Pentericci, L.; Roberts-Borsani, G.; Vulcani, B.; Boyett, K.; Bradac, M.; Glazebrook, K.; Jones, T.; Marchesini, D.; Mascia, S.; Nanayakkara, T.; Santini, P.; Strait, V.; Vanzella, E.; Wang, X.
I: Astrophysical Journal Letters, Bind 942, Nr. 2, L28, 10.01.2023.Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt
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T1 - Early Results From GLASS-JWST. XII. The Morphology of Galaxies at the Epoch of Reionization
AU - Treu, T.
AU - Calabro, A.
AU - Castellano, M.
AU - Leethochawalit, N.
AU - Merlin, E.
AU - Fontana, A.
AU - Yang, L.
AU - Morishita, T.
AU - Trenti, M.
AU - Dressler, A.
AU - Mason, C.
AU - Paris, D.
AU - Pentericci, L.
AU - Roberts-Borsani, G.
AU - Vulcani, B.
AU - Boyett, K.
AU - Bradac, M.
AU - Glazebrook, K.
AU - Jones, T.
AU - Marchesini, D.
AU - Mascia, S.
AU - Nanayakkara, T.
AU - Santini, P.
AU - Strait, V.
AU - Vanzella, E.
AU - Wang, X.
PY - 2023/1/10
Y1 - 2023/1/10
N2 - Star-forming galaxies can exhibit strong morphological differences between the rest-frame far-UV and optical, reflecting inhomogeneities in star formation and dust attenuation. We exploit deep, high-resolution, NIRCAM seven-band observations to take a first look at the morphology of galaxies in the epoch of reionization (z > 7), and its variation in the rest-frame wavelength range between Ly alpha and 6000-4000 angstrom, at z = 7-12. We find no dramatic variations in morphology with wavelength-of the kind that would have overturned anything we have learned from the Hubble Space Telescope. No significant trends between morphology and wavelengths are detected using standard quantitative morphology statistics. We detect signatures of mergers/interactions in 4/19 galaxies. Our results are consistent with a scenario in which Lyman-break galaxies-observed when the universe is only 400-800 Myr old-are growing via a combination of rapid, galaxy-scale star formation supplemented by the accretion of star-forming clumps and interactions.
AB - Star-forming galaxies can exhibit strong morphological differences between the rest-frame far-UV and optical, reflecting inhomogeneities in star formation and dust attenuation. We exploit deep, high-resolution, NIRCAM seven-band observations to take a first look at the morphology of galaxies in the epoch of reionization (z > 7), and its variation in the rest-frame wavelength range between Ly alpha and 6000-4000 angstrom, at z = 7-12. We find no dramatic variations in morphology with wavelength-of the kind that would have overturned anything we have learned from the Hubble Space Telescope. No significant trends between morphology and wavelengths are detected using standard quantitative morphology statistics. We detect signatures of mergers/interactions in 4/19 galaxies. Our results are consistent with a scenario in which Lyman-break galaxies-observed when the universe is only 400-800 Myr old-are growing via a combination of rapid, galaxy-scale star formation supplemented by the accretion of star-forming clumps and interactions.
KW - DISTANT GALAXIES
KW - EVOLUTION
U2 - 10.3847/2041-8213/ac9283
DO - 10.3847/2041-8213/ac9283
M3 - Letter
VL - 942
JO - The Astrophysical Journal Letters
JF - The Astrophysical Journal Letters
SN - 2041-8205
IS - 2
M1 - L28
ER -
ID: 337658652