1 citations · 1 across the 8 of their papers we have counts for
8 papers · 1 filter
Galaxy sizes in the early Universe
P. Cataldi, S. Pedrosa, L. J. Pellizza +2
We present preliminary results of a study of galaxy sizes at redshift using the high-resolution, zoom-in \textsc{FirstLight} simulations. We obtain a redshift-indepen…
High-ionization coronal lines trace quasar-like activity in recently quenched galaxies at high redshift
F. Valentino, K. Ito, M. Farcy +31
We report the detection of the high-ionization line [NeV]3427 in the JWST/NIRSpec archival spectra of 6 massive quenched galaxies at , identified from a parent s…
DeepDive: Simultaneous Formation of Massive Quiescent Galaxies in High-Redshift Galaxy Overdensities
Takumi Kakimoto, Masayuki Tanaka, Kei Ito +20
We report on the spectroscopic confirmation of overdense regions of massive quiescent galaxies (QGs) in the early Universe with JWST/NIRSpec. Based on data from the DeepDive NIRSpe…
Accelerated size evolution in the FirstLight simulations from z=14 to z=5
Daniel Ceverino, Yurina Nakazato, Naoki Yoshida +3
Galaxies grow very rapidly during the first Gyr of the Universe, mostly driven by high galaxy efficiencies, particularly relevant at . This efficiency is related to high gas d…
The ionised interstellar medium of DSFGs revealed by JWST/NIRSpec and ALMA: Super-solar metallicity, low ionisation parameters and, typical electron densities
Steven Gillman, Kei Ito, Francesco Valentino +25
We present a detailed study of near-infrared (2-4m) JWST/NIRSpec spectra of 48 high-redshift () galaxies detected with ALMA at . From a multi-wa…
RIOJA. The dusty outflows and density-complex interstellar medium in the N-enhanced lensed galaxy RXCJ2248-ID at z=6.1
A. Crespo Gómez, Y. Tamura, L. Colina +19
We present an analysis on the kinematics and physical properties of the ionized gas in the lensed galaxy RXCJ2248-ID at z=6.1 based on high-resolution JWST NIRSpec/IFU data in comb…
Galaxy sizes and compactness at Cosmic Dawn
P. Cataldi, S. Pedrosa, L. J. Pellizza +2
The James Webb Space Telescope has found an unexpected population of high-mass galaxies () with extremely small effective radii ($\sim 1…
DeepDive: A deep dive into the physics of the first massive quiescent galaxies in the Universe
K. Ito, F. Valentino, G. Brammer +26
We present the DeepDive program, in which we obtained deep JWST/NIRSpec G235M/F170LP spectra for ten primary massive () quiescent galaxies at $z\…