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A first look at the SMACS0723 JWST ERO: spectroscopic redshifts, stellar masses, and star-formation histories

Monthly Notices of the Royal Astronomical Society: Letters Oxford University Press (OUP) 518:1 (2022) l45-l50

Authors:

AC Carnall, R Begley, DJ McLeod, ML Hamadouche, CT Donnan, RJ McLure, JS Dunlop, B Milvang-Jensen, CL Bondestam, F Cullen, SM Jewell, CL Pollock
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Galaxy And Mass Assembly: galaxy morphology in the green valley, prominent rings, and looser spiral arms

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 517:3 (2022) 4575-4589

Authors:

Dominic Smith, Lutz Haberzettl, LE Porter, Ren Porter-Temple, Christopher PA Henry, Benne Holwerda, ÁR López-Sánchez, Steven Phillipps, Alister W Graham, Sarah Brough, Kevin A Pimbblet, Jochen Liske, Lee S Kelvin, Clayton D Robertson, Wade Roemer, Michael Walmsley, David O’Ryan, Tobias Géron
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A New Task: Deriving Semantic Class Targets for the Physical Sciences

ArXiv 2210.1476 (2022)

Authors:

Micah Bowles, Hongming Tang, Eleni Vardoulaki, Emma L Alexander, Yan Luo, Lawrence Rudnick, Mike Walmsley, Fiona Porter, Anna MM Scaife, Inigo Val Slijepcevic, Gary Segal
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Search and identification of transient and variable radio sources using MeerKAT observations: a case study on the MAXI J1820+070 field

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 517:2 (2022) 2894-2911

Authors:

A Rowlinson, J Meijn, J Bright, AJ van der Horst, S Chastain, S Fijma, R Fender, I Heywood, RAMJ Wijers, PA Woudt, A Andersson, GR Sivakoff, E Tremou, LN Driessen
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Panic! at the Disks: First Rest-frame Optical Observations of Galaxy Structure at z > 3 with JWST in the SMACS 0723 Field

The Astrophysical Journal Letters American Astronomical Society 938:1 (2022) L2-L2

Authors:

Leonardo Ferreira, Nathan Adams, Christopher J Conselice, Elizaveta Sazonova, Duncan Austin, Joseph Caruana, Fabricio Ferrari, Aprajita Verma, James Trussler, Tom Broadhurst, Jose Diego, Brenda L Frye, Massimo Pascale, Stephen M Wilkins, Rogier A Windhorst, Adi Zitrin

Abstract:

We present early results regarding the morphological and structural properties of galaxies seen with the James Webb Space Telescope (JWST) at z > 3 in the Early Release Observations toward the SMACS 0723 cluster field. Using JWST we investigate, for the first time, the optical morphologies of a significant number of z > 3 galaxies with accurate photometric redshifts in this field to determine the form of galaxy structure in the relatively early universe. We use visual morphologies and Morfometryka measures to perform quantitative morphology measurements, both parametric with light profile fitting (Sérsic indices) and nonparametric (concentration, asymmetry, and smoothness (CAS) values). Using these, we measure the relative fraction of disk, spheroidal, and peculiar galaxies at 3 1.5 disk galaxies dominate the overall fraction of morphologies, with a factor of ∼10 relative higher number of disk galaxies than seen by the Hubble Space Telescope at these redshifts. Our visual morphological estimates of galaxies align closely with their locations in CAS parameter space and their Sérsic indices. © 2022. The Author(s). Published by the American Astronomical Society.Open access journalThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu
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