Journal article
Early Results from GLASS-JWST. XVIII. A First Morphological Atlas of the 1 < z < 5 Universe in the Rest-frame Optical
C Jacobs, K Glazebrook, A Calabrò, T Treu, T Nannayakkara, T Jones, E Merlin, R Abraham, ARH Stevens, B Vulcani, L Yang, A Bonchi, K Boyett, M Bradač, M Castellano, A Fontana, D Marchesini, M Malkan, C Mason, T Morishita Show all
Astrophysical Journal Letters | IOP Publishing Ltd | Published : 2023
Abstract
We present a rest-frame optical morphological analysis of galaxies observed with the NIRCam imager on the James Webb Space Telescope (JWST) as part of the GLASS-JWST Early Release Science program. We select 388 sources at redshifts 0.8 < z 1.5, revealed by rest-frame optical imaging. We detect 123 clear disks (58 at z > 1.5) of which 76 have bulges. No evolution of bulge fraction with redshift is evident: 61% at z 109.5 M ⊙ (N = 41) but only 52% at M < 109.5 M ⊙ (N = 82). We supplement visual morphologies with nonparametric measurements of Gini and asymmetry coefficients in the rest-frame i band. Our sources are more asymmetric than local galaxies, with slightly higher Gini values. When com..
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Grants
Awarded by Ecological Society of Australia Incorporated
Funding Acknowledgements
This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program JWST-ERS-1324. We acknowledge financial support from NASA through grant JWST-ERS-1324. C.J., K.G., and T.N. acknowledge support from Australian Research Council Laureate Fellowship FL180100060. M.T. acknowledges support from the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. A.R.H.S. acknowledges funding through the Jim Buckee Fellowship at ICRAR/UWA. M.B. acknowledges support from the Slovenian national research agency ARRS through grant N1-0238. Software: Lupton HumVI code (Marshall et al. 2015), EAZY (Brammer et al. 2008), PhotUtils (Bradley et al. 2020), FAST++ code (Schreiber et al. 2018).