Search Publications
First insights into the ISM at z > 8 with JWST: possible physical implications of a high [O III] λ4363/[O III] λ5007
Carniani, Stefano; Übler, Hannah; D'Eugenio, Francesco +15 more
We present a detailed analysis of the rest-frame optical emission line ratios for three spectroscopically confirmed galaxies at z > 7.5. The galaxies were identified in the James Webb Space Telescope (JWST) Early Release Observations field SMACS J0723.3 - 7327. By quantitatively comparing Balmer and oxygen line ratios of these galaxies with var…
JWST UNCOVER: discovery of z > 9 galaxy candidates behind the lensing cluster Abell 2744
Labbé, Ivo; van Dokkum, Pieter; Bezanson, Rachel +19 more
We present the results of a search for high-redshift (z > 9) galaxy candidates in the JWST UNCOVER survey, using deep NIRCam and NIRISS imaging in seven bands over ~45 arcmin2 and ancillary Hubble Space Telescope (HST) observations. The NIRCam observations reach a 5σ limiting magnitude of ~29.2 AB. The identification of high-z candid…
Constraining the physical properties of the first lensed z 9 - 16 galaxy candidates with JWST
Chevallard, Jacopo; Richard, Johan; Lehnert, Matthew D. +4 more
The first deep-field observations of the JWST have immediately yielded a surprisingly large number of very high redshift candidates, pushing the frontier of observability well beyond z ≳ 10. We here present a detailed SED-fitting analysis of the 10 gravitationally lensed z ~ 9-16 galaxy candidates detected behind the galaxy cluster SMACS J0723.3-7…
The LOFAR Two-metre Sky Survey: Deep Fields data release 1. V. Survey description, source classifications, and host galaxy properties
Bondi, M.; Prandoni, I.; Małek, K. +26 more
Source classifications, stellar masses, and star-formation rates are presented for ≈80 000 radio sources from the first data release of the Low Frequency Array Two-metre Sky Survey (LoTSS) Deep Fields, which represents the widest deep radio survey ever undertaken. Using deep multi-wavelength data spanning from the ultraviolet to the far-infrared, …
Primordial power spectrum in light of JWST observations of high redshift galaxies
Laha, Ranjan; Parashari, Priyank
Early data releases of JWST have revealed several high redshift massive galaxy candidates by photometry, and some of them have been confirmed spectroscopically. We study their implications on the primordial power spectrum. In the first part, we use the CEERS photometric survey data, along with respective spectroscopic updates, to compute the cumul…
TRINITY I: self-consistently modelling the dark matter halo-galaxy-supermassive black hole connection from z = 0-10
Fan, Xiaohui; Aird, James; Yang, Jinyi +5 more
We present TRINITY, a flexible empirical model that self-consistently infers the statistical connection between dark matter haloes, galaxies, and supermassive black holes (SMBHs). TRINITY is constrained by galaxy observables from 0 < z < 10 [galaxies' stellar mass functions, specific and cosmic star formation rates (SFRs), quenched fractions…
The PHANGS-MUSE nebular catalogue
Dale, D. A.; Schinnerer, E.; Groves, B. +17 more
Ionized nebulae provide critical insights into the conditions of the interstellar medium (ISM). Their bright emission lines enable the measurement of physical properties, such as the gas-phase metallicity, across galaxy discs and in distant galaxies. The PHANGS-MUSE survey has produced optical spectroscopic coverage of the central star-forming dis…
The ionizing photon production efficiency at z 6 for Lyman-alpha emitters using JEMS and MUSE
Maiolino, R.; Sun, F.; Egami, E. +21 more
We study the ionizing photon production efficiency at the end of the Epoch of Reionization (z ~ 5.4 - 6.6) for a sample of 30 Ly α emitters. This is a crucial quantity to infer the ionizing photon budget of the universe. These objects were selected to have reliable spectroscopic redshifts, assigned based on the profile of their Ly α emission line,…
Deep ALMA redshift search of a z ∼ 12 GLASS-JWST galaxy candidate
Santini, Paola; Casey, Caitlin M.; Castellano, Marco +20 more
The JWST has discovered a surprising abundance of bright galaxy candidates in the very early universe (≤500 Myr after the Big Bang), calling into question current galaxy formation models. Spectroscopy is needed to confirm the primeval nature of these candidates, as well as to understand how the first galaxies form stars and grow. Here we present d…
Gravitationally lensed quasars in Gaia - IV. 150 new lenses, quasar pairs, and projected quasars
Treu, T.; Courbin, F.; Anguita, T. +10 more
We report the spectroscopic follow-up of 175 lensed quasar candidates selected using Gaia Data Release 2 observations following Paper III of this series. Systems include 86 confirmed lensed quasars and a further 17 likely lensed quasars based on imaging and/or similar spectra. We also confirm 11 projected quasar pairs and 11 physical quasar pairs,…