135 citations · 988 across the 37 of their papers we have counts for
38 papers
The birth and fate of stellar clumps in super-early galaxies
B. Das, A. Ferrara, A. Pallottini +2
(Abridged) JWST has revealed extremely compact stellar clumps in galaxies at z>6, but their formation mechanism and subsequent evolution remain uncertain. We investigate whether su…
On the clumpy nature of super-early galaxies
A. Ferrara, B. Das, M. Kohandel +2
JWST has revealed that galaxies during the Epoch of Reionization are composed of compact stellar clumps spanning more than two orders of magnitude in mass and size. We present an a…
Gamma-ray bursts reveal the history and faint contributors of cosmic reionization
Jing-Meng Hao, Paolo Cassata, Zhen-Ya Zheng +5
Star-forming galaxies are generally believed to be the main drivers of cosmic reionization. However, the relative contributions of bright and faint galaxies to this process remain…
Direct detection of cool molecular gas in a star-forming galaxy at
Karin Cescon, Jacqueline A. Hodge, Leindert A. Boogaard +21
We investigate the molecular gas content and interstellar medium (ISM) conditions of REBELS-25, a massive, star-forming galaxy at . Deep VLA Q-band and ALMA Band 3 observat…
Clustering constraints on super-early galaxy formation scenarios
Antonio Matteri, Andrea Pallottini, Andrea Ferrara
The unexpectedly high abundance of bright, blue, super-early galaxies () has challenged most pre-JWST models of early galaxy formation and motivated a wide range of pro…
Intense and extended CIII] emission suggests a strong outflow in JADES-GS-z14-0
Stefano Carniani, Peter Jakobsen, Giacomo Venturi +31
JWST has revealed an overabundance of very bright, blue galaxies at z>10, raising fundamental questions about how star formation and feedback operate at Cosmic Dawn. We present new…
REBELS-IFU: Linking damped Lyman- absorption to [CII] emission and dust content in the EoR
Lucie E. Rowland, Kasper E. Heintz, Hiddo Algera +19
Neutral gas in galaxies during the Epoch of Reionisation regulates star formation, dust growth, and the escape of ionising photons, making it a key ingredient in understanding both…
Amaryllis: a digital twin of the earliest galaxies in the Universe
Mahsa Kohandel, Andrea Pallottini, Andrea Ferrara
Synergies between JWST and ALMA are unveiling a population of bright, super-early () galaxies, including systems like GS-z14-0 () and GHZ2 () with extreme FIR…
Can primordial black holes explain the overabundance of bright super-early galaxies?
Antonio Matteri, Andrea Pallottini, Andrea Ferrara
JWST is detecting an excess of high-redshift (), bright galaxies challenging most theoretical predictions. To address this issue, we investigate the impact of Primordi…
Beyond the first galaxies primordial black holes shine
Antonio Matteri, Andrea Ferrara, Andrea Pallottini
The presence of nine candidate galaxies at and discovered by the James Webb Space Telescope in relatively small sky areas, if confirmed, is virtually impossible to re…
Temporarily quiescent galaxies at cosmic dawn: probing bursty star formation
Viola Gelli, Andrea Pallottini, Stefania Salvadori +4
The bursty, time-variable nature of star formation in the first billion years, as revealed by JWST, drives phases of temporary quiescence in low-mass galaxies that quench after sta…
REBELS-IFU: Evidence for metal-rich massive galaxies at z~6-8
Lucie E. Rowland, Mauro Stefanon, Rychard Bouwens +30
Metallicity is a crucial tracer of galaxy evolution, providing insights into gas accretion, star formation, and feedback. At high redshift, these processes reveal how early galaxie…
REBELS-IFU: Dust attenuation curves of 12 massive galaxies at
Rebecca Fisher, Rebecca A. A. Bowler, Mauro Stefanon +17
We present measurements of the dust attenuation curves of 12 massive (( ) Lyman-break galaxies at derived from James Webb Space…
REBELS-IFU: Dust Build-up in Massive Galaxies at Redshift 7
Hiddo Algera, Lucie Rowland, Mauro Stefanon +22
In recent years, observations with the JWST have started to map out the rapid metal enrichment of the early Universe, while (sub)millimeter observations have simultaneously begun t…
Primordial black holes as supermassive black holes seeds
Francesco Ziparo, Simona Gallerani, Andrea Ferrara
The presence of supermassive black holes (SMBHs, ) in the first cosmic Gyr () challenges current models of BH formation and evoluti…
REBELS-25: Discovery of a dynamically cold disc galaxy at z = 7.31
Lucie E. Rowland, Jacqueline Hodge, Rychard Bouwens +21
We present high resolution (" = 710 pc) ALMA [CII] 158m and dust continuum follow-up observations of REBELS-25, a [CII]-luminous ($L_{\mathrm{[CII]}}=(1.7\pm0.2)\times…
An optically-dark merging system at z~6 detected by JWST
Giulia Rodighiero, Andrea Enia, Laura Bisigello +16
Near- to mid-Infrared observations (from Spitzer and JWST) have revealed a hidden population of galaxies at redshift z=3-6, called optically-dark objects, which are believed to be…
Is GN-z11 powered by a super-Eddington massive black hole?
Maulik Bhatt, Simona Gallerani, Andrea Ferrara +6
Observations of quasars powered by supermassive black holes (SMBHs; ) challenge our current understanding of early black hole (BH) f…
Dynamically cold disks in the early Universe: myth or reality?
Mahsa Kohandel, Andrea Pallottini, Andrea Ferrara +3
Theoretical models struggle to reproduce dynamically cold disks with significant rotation-to-dispersion support() observed in star-forming galaxies in the early Uni…
Can supernovae quench star formation in high- galaxies?
Viola Gelli, Stefania Salvadori, Andrea Ferrara +1
JWST is providing the unique opportunity to directly study feedback processes regulating star formation (SF) in early galaxies. The two quiescent systems (JADES-GS-z7-01-QU a…
Spatially resolved Kennicutt-Schmidt relation at z~7 and its connection with the interstellar medium properties
Livia Vallini, Joris Witstok, Laura Sommovigo +7
We exploit moderately resolved [OIII], [CII] and dust continuum ALMA observations to derive the gas density (), the gas-phase metallicity () and the deviation from the Kennic…
Are there more galaxies than we see around high- quasars?
Tommaso Zana, Stefano Carniani, David Prelogović +5
Whether or not quasars lie in the most massive dark-matter halos of the Universe is still a subject of dispute. While most theoretical studies support this scenario,…
Studying [CII] Emission in Low-mass Galaxies at z ~ 7
Kelsey Glazer, Marusa Bradac, Ryan L. Sanders +8
We report on a search using the Atacama Large Millimeter/submillimeter Array (ALMA) on three lensed, confirmed {\lya} emitting galaxies at . Our…
The interstellar medium of high-redshift galaxies: Gathering clues from C III] and [C II] lines
Vladan Markov, Stefano Carniani, Livia Vallini +5
A tight relation between [C II] line luminosity and the star formation rate (SFR) has been observed for local galaxies. At high redshift (z > 5), galaxies instead deviate downwards…