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The puzzling properties of the MACS1149-JD1 galaxy at z=9.11
Massimo Stiavelli, Takahiro Morishita, Marco Chiaberge +6
We analyze new JWST NIRCam and NIRSpec data on the redshift 9.11 galaxy MACS1149-JD1. Our NIRCam imaging data reveal that JD1 comprises three spatially distinct components. Our spe…
An extremely metal poor star complex in the reionization era: Approaching Population III stars with JWST
E. Vanzella, F. Loiacono, P. Bergamini +31
We present JWST/NIRSpec integral field spectroscopy (IFS) of a lensed Population III candidate stellar complex (dubbed Lensed And Pristine 1, LAP1), with a lensing-corrected stella…
Early results from GLASS-JWST. XX: Unveiling a population of "red-excess'' galaxies in Abell2744 and in the coeval field
Benedetta Vulcani, Tommaso Treu, Antonello Calabro +26
We combine JWST/NIRCam imaging and MUSE data to characterize the properties of galaxies in different environmental conditions in the cluster Abell2744 () and in its immed…
The GLASS-JWST Early Release Science Program. III. Strong lensing model of Abell 2744 and its infalling regions
Pietro Bergamini, Ana Acebron, Claudio Grillo +23
We present a new high-precision, JWST-based, strong lensing model for the galaxy cluster Abell 2744 at . By combining the deep, high-resolution JWST imaging from the GLAS…
The Kormendy relation of early-type galaxies as a function of wavelength in Abell S1063, MACS J0416.1-2403, and MACS J1149.5+2223
L. Tortorelli, A. Mercurio, G. Granata +9
The wavelength dependence of the Kormendy relation (KR) is well characterised at low redshift but poorly studied at intermediate redshifts. The KR provides information on the evolu…
Closing in on the sources of cosmic reionization: first results from the GLASS-JWST program
S. Mascia, L. Pentericci, A. Calabro' +29
The escape fraction of Lyman-continuum (LyC) photons () is a key parameter for determining the sources of cosmic reionization at . At these redshifts, owing to th…