212 citations · 3.2k across the 77 of their papers we have counts for
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Mergers may not be the main channel for galaxy stellar mass growth at redshift : Predictions from cosmological hierarchical models and simulations
Hao Fu, Mohammadreza Ayromlou, Francesco Shankar +13
Mergers are a crucial channel of galaxy growth, but their role relative to star formation remains uncertain at high redshift. Here we investigate merger rates and merger-driven ste…
Investigating the formation channel of GW231123: Population III stars or hierarchical mergers?
Federico Angeloni, Konstantinos Kritos, Raffaella Schneider +5
The gravitational wave event GW231123, with component black hole masses lying within or above the pair-instability mass gap, poses a significant challenge to current stellar evolut…
The LISA Astrophysics MBHcatalogues Project: A comparison of predictions of simulated massive black hole binaries
David Izquierdo-Villalba, Melanie Habouzit, Matteo Bonetti +67
In the hierarchical paradigm of galaxy formation, central massive black holes (MBHs) are expected to coalesce after the merger of their host galaxies. One of the main goals of the…
Dust enrichment from core-collapse supernovae and extinction curves in the high-redshift universe
Koki Otaki, Raffaella Schneider, Simone Bianchi +4
Recent JWST observations have revealed that some galaxies at generally exhibit relatively flat ultraviolet (UV) attenuation curves and a weak UV bump. These features…
The search for Population III: Confirmation of a HeII emitter with no metal lines at z=10.6
Roberto Maiolino, Hannah Übler, Michele Perna +49
We report the confirmation of a HeII1640 emitter located at 3 pkpc from the galaxy GN-z11, at z=10.6. The detection, based on JWST NIRSpec-IFU high-resolution spectroscopy, conf…
Catching the Nebular Needle in a Polluted Haystack: Line-emission Signatures from Population III-forming Pockets around Massive Galaxies at the End of Reionization
Alessandra Venditti, Luca Graziani, Raffaella Schneider +10
Finding the first generation of (Population III or Pop III) stars is one of the most ambitious and exciting challenges of astrophysics. JWST opened concrete prospects for their det…
Too many or too massive? Investigating the high- demography of active SMBHs from JWST
Daniel Roberts, Francesco Shankar, Vieri Cammelli +12
Recent JWST observations have unveiled a numerous population of low-luminosity active galactic nuclei (AGN) at , with space densities roughly an order of magnitude above p…
Milky Way Globular Clusters: Nurseries for Dynamically-Formed Binary Black Holes
Federico Angeloni, Konstantinos Kritos, Raffaella Schneider +4
We present a novel self-consistent theoretical framework to characterize the formation, evolution, and merger sites of dynamically-formed black hole binaries, with a focus on expla…
Super-Eddington accretion in protogalactic cores
Tommaso Zana, Pedro R. Capelo, Mairo Boresta +6
The presence of massive black holes (BHs) exceeding already at redshift challenges standard models of BH growth. Super-Eddington (SE) accretion has…
Effective supernova dust yields from rotating and non-rotating stellar progenitors
Koki Otaki, Raffaella Schneider, Luca Graziani +4
Supernovae (SNe) are believed to be the dominant sources of dust production at high redshift. However, the reverse shock generated by the interaction of the SN forward shock and th…
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 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…
Episodic super-Eddington accretion as a clue to Overmassive Black Holes in the early Universe
Alessandro Trinca, Rosa Valiante, Raffaella Schneider +7
Early JWST observations are providing growing evidence for a ubiquitous population of accreting supermassive black holes (BHs) at high redshift, many of which appear overmassive co…
Characterizing the contribution of dust-obscured star formation at 5 using 18 serendipitously identified [CII] emitters
I. F. van Leeuwen, R. J. Bouwens, P. P. van der Werf +24
We present a new method to determine the star formation rate (SFR) density of the Universe at that includes the contribution of dust-obscured star formation. For this…
A hide-and-seek game: Looking for Population III stars during the Epoch of Reionization through the HeII1640 line
Alessandra Venditti, Volker Bromm, Steven L. Finkelstein +4
The gas surrounding first-generation (Pop III) stars is expected to emit a distinct signature in the form of the HeII recombination line at 1640 Å (HeII1640). Here we explore th…
Carbon envelopes around merging galaxies at z ~ 4.5
C. Di Cesare, M. Ginolfi, L. Graziani +3
Galaxies evolve through a dynamic exchange of material with their immediate surrounding environment, the so-called circumgalactic medium (CGM). Understanding the physics of gas flo…
Metal and dust evolution in ALMA REBELS galaxies: insights for future JWST observations
Marco Palla, Ilse De Looze, Monica Relaño +16
ALMA observations revealed the presence of significant amounts of dust in the first Gyr of Cosmic time. However, the metal and dust buildup picture remains very uncertain due to th…
The ALMA Reionization Era Bright Emission Line Survey (REBELS): The molecular gas content of galaxies at z~7
M. Aravena, K. E. Heintz, M. Dessauges-Zavadsky +18
A key to understanding the formation of the first galaxies is to quantify the content of the molecular gas as the fuel for star formation activity through the epoch of reionization…
PRUSSIC II -- ALMA imaging of dense-gas tracers in SDP.81: Evidence for low mechanical heating and a sub-solar metallicity in a z=3.04 dusty galaxy
M. Rybak, J. van Marrewijk, J. A. Hodge +6
We present deep ALMA Band 3 observations of the HCN, HCO+, and HNC (4-3) emission in SDP.81, a well-studied z = 3.042 strongly lensed galaxy. These lines trace the high-density gas…
The ALMA REBELS survey: obscured star formation in massive Lyman-break galaxies at z = 4-8 revealed by the IRX- and relations
R. A. A. Bowler, H. Inami, L. Sommovigo +23
We investigate the degree of dust obscured star formation in 49 massive () Lyman-break galaxies (LBGs) at - observed as par…
The first fireworks: A roadmap to Population III stars during the Epoch of Reionization through Pair Instability Supernovae
Alessandra Venditti, Volker Bromm, Steven L. Finkelstein +2
With the launch of JWST and other scheduled missions aimed at probing the distant Universe, we are entering a new promising era for high- astronomy. One of our main goals is the…
Are we surprised to find SMBHs with JWST at z > 9?
Raffaella Schneider, Rosa Valiante, Alessandro Trinca +3
JWST is unveiling for the first time accreting black holes (BHs) with masses of 10^6 - 10^7 Msun at z > 4, with the most distant residing in GNz11 at z = 10.6. Are we really surpri…
Exploring the nature of UV-bright galaxies detected by JWST: star formation, black hole accretion, or a non-universal IMF?
Alessandro Trinca, Raffaella Schneider, Rosa Valiante +4
We use the Cosmic Archaeology Tool (CAT) semi-analytical model to explore the contribution of Population (Pop) III/II stars and active galactic nuclei (AGNs) to the galaxy UV lumin…
The ALMA REBELS Survey: Discovery of a massive, highly star-forming and morphologically complex ULIRG at
A. P. S. Hygate, J. A. Hodge, E. da Cunha +27
We present Atacama Large Millimeter/Submillimeter Array (ALMA) [CII] and continuum observations of REBELS-25, a massive, morphologically complex ultra-luminous in…