Publications (207)
Beyond the Monsters: A More Complete Census of Black Hole Activity at Cosmic Dawn
Madisyn Brooks, Jonathan R. Trump, Raymond C. Simons +19
JWST has revealed an abundance of low-luminosity active galactic nuclei (AGN) at high redshifts (), pushing the limits of black hole (BH) science in the early Universe. Resu…
FirstLight IV: Diversity in sub-L galaxies at cosmic dawn
Daniel Ceverino, Michaela Hirschmann, Ralf Klessen +3
Using a large sample of sub-L galaxies, with similar UV magnitudes, M at , extracted from the FirstLight simulations, we show the diversity of ga…
The Evolution of Sizes and Specific Angular Momenta in Hierarchical Models of Galaxy Formation and Evolution
Anna Zoldan, Gabriella De Lucia, Lizhi Xie +2
We extend our previous work focused at , studying the redshift evolution of galaxy dynamical properties using the state-of-the-art semi-analytic model GAEA: we show that th…
A confirmed deficit of hot and cold dust emission in the most luminous Little Red Dots
David J. Setton, Jenny E. Greene, Justin S. Spilker +33
Luminous broad H emission and red rest-optical SEDs are the hallmark of compact Little Red Dots (LRDs), implying highly attenuated dusty starbursts and/or obscured active galac…
MOSEL survey: JWST reveals major mergers/strong interactions drive the extreme emission lines in the early universe
Anshu Gupta, Ravi Jaiswar, Vicente Rodriguez-Gomez +7
Extreme emission line galaxies (EELGs), where nebular emissions contribute 30-40% of the flux in certain photometric bands, are ubiquitous in the early universe (z>6). We utilise d…
Gas accretion regulates the scatter of the mass-metallicity relation
Gabriella De Lucia, Lizhi Xie, Fabio Fontanot +1
In this paper, we take advantage of the GAlaxy Evolution and Assembly (GAEA) semi-analytic model to analyse the origin of secondary dependencies in the local galaxy mass - gas meta…
The first quenched galaxies, when and how?
Lizhi Xie, Gabriella De Lucia, Fabio Fontanot +11
Many quiescent galaxies discovered in the early Universe by \textit{JWST} raise fundamental questions on when and how these galaxies became and stayed quenched. Making use of the l…
On the dependence of galaxy morphologies on galaxy mergers
Fabio Fontanot, Andrea V. Maccio', Michaela Hirschmann +4
The distribution of galaxy morphological types is a key test for models of galaxy formation and evolution, providing strong constraints on the relative contribution of different ph…
Tracing the rise of supermassive black holes: A panchromatic search for faint, unobscured quasars at z > 6 with COSMOS-Web and other surveys
Irham T. Andika, Knud Jahnke, Masafusa Onoue +20
We report the identification of 64 new candidates of compact galaxies, potentially hosting faint quasars with bolometric luminosities of --10 erg s…
Semi-analytic forecasts for Roman -- the beginning of a new era of deep-wide galaxy surveys
L. Y. Aaron Yung, Rachel S. Somerville, Steven L. Finkelstein +11
The Nancy Grace Roman Space Telescope, NASA's next flagship observatory, will redefine deep-field galaxy survey with a field of view two orders of magnitude larger than Hubble and…
Exploring the Nature of Little Red Dots: Constraints on AGN and Stellar Contributions from PRIMER MIRI Imaging
Gene C. K. Leung, Steven L. Finkelstein, Pablo G. Pérez-González +20
JWST has revealed a large population of compact, red galaxies at known as Little Red Dots (LRDs). We analyze the spectral energy distributions (SEDs) of 95 LRDs from the JWST…
Optical Strong Line Ratios Cannot Distinguish Between Stellar Populations and Accreting Black Holes at High Ionization Parameters and Low Metallicities
Nikko J. Cleri, Grace M. Olivier, Bren E. Backhaus +24
High-redshift observations from JWST indicate that optical strong line ratios do not carry the same constraining power as they do at low redshifts. Critically, this prevents a sepa…
Compact dust-obscured star-formation and the origin of the galaxy bimodality
Maxime Tarrasse, Carlos Gómez-Guijarro, David Elbaz +19
During the last decade, studies about highly attenuated and massive red star-forming galaxies (RedSFGs) at have suggested that they could constitute a crucial population…
The relation up to through decomposition of COSMOS-Web NIRCam images
Takumi S. Tanaka, John D. Silverman, Xuheng Ding +25
Our knowledge of relations between supermassive black holes and their host galaxies at is still limited, even though being actively sought out to . Here, we use…
An Empirical Determination of the Dependence of the Circumgalactic Mass Cooling Rate and Feedback Mass Loading Factor on Galactic Stellar Mass
Huanian Zhang, Dennis Zaritsky, Karen Pardos Olsen +9
Using our measurements of the H emission line flux originating in the cool (T K) gas that populates the halos of galaxies, we build a joint model to describe mass of…
AGN-driven quenching of satellite galaxies
Gohar Dashyan, Ena Choi, Rachel S. Somerville +4
We explore the effect of active galactic nucleus (AGN) feedback from central galaxies on their satellites by comparing two sets of cosmological zoom-in runs of 27 halos with masses…
Spectral Templates Optimal for Selecting Galaxies at z > 8 with JWST
Rebecca L. Larson, Taylor A. Hutchison, Micaela Bagley +9
The selection of high-redshift galaxies often involves spectral energy distribution (SED) fitting to photometric data, an expectation for contamination levels, and measurement of s…
Here There Be (Dusty) Monsters: High Redshift AGN are Dustier Than Their Hosts
Madisyn Brooks, Raymond C. Simons, Jonathan R. Trump +13
JWST spectroscopy has discovered a population of galaxies with broad Balmer emission lines, and narrow forbidden lines, that are consistent with hosting active gala…
CEERS Key Paper VII: JWST/MIRI Reveals a Faint Population of Galaxies at Cosmic Noon Unseen by Spitzer
Allison Kirkpatrick, Guang Yang, Aurelien Le Bail +33
The Cosmic Evolution Early Release Science (CEERS) program observed the Extended Groth Strip with the Mid-Infrared Instrument (MIRI) on the James Webb Space Telescope (JWST) in 202…
Molecular gas and dust properties in quasar hosts
Francesco Salvestrini, Chiara Feruglio, Roberta Tripodi +12
Observational campaigns hunting the elusive reservoirs of cold gas in the host galaxies of quasars at the epoch of reionization (EoR) are crucial for studying the formation and evo…
Sparse by the River: Diverse Environments of z > 3 Massive Quiescent Galaxies
Nguyen Binh, Arianna S. Long, Jacqueline Antwi-Danso +29
High-redshift (), massive quiescent galaxies (QGs) offer a significant window into early Universe galaxy formation. Previous works have predicted miscellaneous properties fo…
The ALPINE-CRISTAL-JWST Survey: The Fast Metal Enrichment of Massive Galaxies at z~5
Andreas L. Faisst, Lun-Jun Liu, Yohan Dubois +54
We present the stellar mass-metallicity relation (MZR) and mass-metallicity-star formation relation ("fundamental metallicity relation"; FMR) of 18 massive (log(M/Msun) = 9.5 - 11)…
CEERS: Increasing Scatter along the Star-Forming Main Sequence Indicates Early Galaxies Form in Bursts
Justin W. Cole, Casey Papovich, Steven L. Finkelstein +29
We present the star-formation-rate -- stellar-mass (SFR-M) relation for galaxies in the CEERS survey at . We model the \jwst\ and \hst\ rest-UV and rest-op…
Dust in the Average Galaxy: Attenuation, Emission, and Opacity from 0<z<7
Caitlin M. Casey, Hollis B. Akins, Andrew J. Battisti +43
We present constraints on the dust emission and attenuation properties of galaxies across 0<z<7 using JWST imaging from the COSMOS-Web Survey combined with deep FIR/(sub)millimeter…
Probing the dawn of galaxies: star formation and feedback in the JWST era through the GAEA model
Sebastiano Cantarella, Gabriella De Lucia, Fabio Fontanot +4
The James Webb Space Telecope (JWST) opened a new window for the study of the highest redshift () Universe. This work presents a theoretical investigation of the very-high red…
COSMOS-Web: The over-abundance and physical nature of "little red dots"--Implications for early galaxy and SMBH assembly
Hollis B. Akins, Caitlin M. Casey, Erini Lambrides +38
JWST has revealed a population of compact and extremely red galaxies at , which likely host active galactic nuclei (AGN). We present a sample of 434 ``little red dots'' (LRDs)…
Reionization with galaxies and active galactic nuclei
Pratika Dayal, Marta Volonteri, Tirthankar Roy Choudhury +6
In this work we investigate the properties of the sources that reionized the intergalactic medium (IGM) in the high-redshift Universe. Using a semi-analytical model aimed at reprod…
Origins of Extreme Emission-Line Ratios in z > 3 Galaxies: Insights from the Lumen Model
Lucie Scharré, Michaela Hirschmann, Adèle Plat +10
Optical emission-line ratios in star-forming galaxies at -8, such as [OIII]/H and [OIII]/[OII], are strongly offset from those at -2, pointing to more extre…
AGN feedback and the origin of the enhancement in early type galaxies - insights from the GAEA model
Gabriella De Lucia, Fabio Fontanot, Michaela Hirschmann
We take advantage of our recently published model for Galaxy Evolution and Assembly (GAEA) to study the origin of the observed correlation between [/Fe] and galaxy stellar mass…
RUBIES: Evolved Stellar Populations with Extended Formation Histories at in Candidate Massive Galaxies Identified with JWST/NIRSpec
Bingjie Wang, Joel Leja, Anna de Graaff +17
The identification of red, apparently massive galaxies at in early JWST photometry suggests a strongly accelerated timeline compared to standard models of galaxy growth. A ma…
Insights into formation scenarios of massive Early-Type galaxies from spatially resolved stellar population analysis in CALIFA
Stefano Zibetti, Anna R. Gallazzi, Michaela Hirschmann +4
We perform spatially resolved stellar population analysis for a sample of 69 early-type galaxies (ETGs) from the CALIFA integral field spectroscopic survey, including 48 elliptical…
COSMOS-Web: Galaxy Size and Surface Brightness Evolution at Rest-Frame 1.22 m Since
Si-Yue Yu, Andreas L. Faisst, Taotao Fang +7
We present the evolution of galaxy size and surface brightness in the rest-frame band (1.22 m), tracing the stellar mass distribution, over , using a sam…
Physics of Galactic Metals: Evolutionary Effects due to Production, Distribution, Feedback & Interaction with Black Holes
Ena Choi, Jeremiah P. Ostriker, Thorsten Naab +5
We ask how the inclusion of various physical heating processes due to the metal content of gas affect the evolution of massive galaxies and compute a suite of cosmological hydrodyn…
Testing Photometric Techniques for Measuring the Rest-Frame UV Spectral Slope Against JWST PRISM Spectroscopy
Alexa M. Morales, Steven L. Finkelstein, Pablo Arrabal Haro +21
We present a sample of 53 galaxy spectra at z_spec ~ 5-12 from the JWST CEERS and RUBIES surveys, combining NIRSpec PRISM spectroscopy with NIRCam photometry. We aim to use these d…
The influence of environment on satellite galaxies in the GAEA semi-analytic model
Lizhi Xie, Gabriella De Lucia, Michaela Hirschmann +1
Reproducing the observed quenched fraction of satellite galaxies has been a long-standing issue for galaxy formation models. We modify the treatment of environmental effects in our…
Probing the large-scale structure with 21cm-galaxy cross-bispectrum: Estimates from simulations and forecasts for upcoming cosmological surveys
Leon Noble, Suman Majumdar, Matteo Viel +7
The paper investigates the 21 cm–galaxy cross‑bispectrum using simulated galaxy evolution models and forecasts its detectability with upcoming Euclid‑like galaxy surveys and SKA‑Mi…
DeepDive: Simultaneous Formation of Massive Quiescent Galaxies in High-Redshift Galaxy Proto-clusters
Takumi Kakimoto, Masayuki Tanaka, Kei Ito +19
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…
The stellar accretion origin of stellar population gradients in massive galaxies at large radii
Michaela Hirschmann, Thorsten Naab, Jeremiah P. Ostriker +5
We investigate the evolution of stellar population gradients from to in massive galaxies at large radii () using ten cosmological zoom simulation…
Starburst galaxies in semi-analytic models of galaxy formation and evolution
Lan Wang, Gabriella De Lucia, Fabio Fontanot +1
We study the shape and evolution of the star formation main sequence in three independently developed semi-analytic models of galaxy formation. We focus, in particular, on the char…
Origin and properties of dual and offset active galactic nuclei in a cosmological simulation at z=2
Lisa K. Steinborn, Klaus Dolag, Julia M. Comerford +3
In the last few years, it became possible to observationally resolve galaxies with two distinct nuclei in their centre. For separations smaller than 10kpc, dual and offset active g…
Mechanisms Affecting Galaxies Nearby and Environmental Trends (MAGNET)
Benedetta Vulcani, Gabriella De Lucia, Daria Zakharova +28
[ABRIDGED] Galaxy evolution is shaped by internal and external mechanisms that regulate the baryon cycle and star formation activity. We present a theoretical framework based on th…
A remarkable Ruby: Absorption in dense gas, rather than evolved stars, drives the extreme Balmer break of a Little Red Dot at
Anna de Graaff, Hans-Walter Rix, Rohan P. Naidu +25
The origin of the rest-optical emission of compact, red, high-redshift sources known as `little red dots' (LRDs) poses a major puzzle. If interpreted as starlight, it would imply t…
The Rise of Active Galactic Nuclei in the GAlaxy Evolution and Assembly semi-analytic model
Fabio Fontanot, Gabriella De Lucia, Michaela Hirschmann +7
We present a new implementation of the GAlaxy Evolution and Assembly (GAEA) semi-analytic model, that features an improved modelling of the process of cold gas accretion onto super…
Witnessing downsizing in the making: quiescent and breathing galaxies at the dawn of the Universe
Emiliano Merlin, Flaminia Fortuni, Antonello Calabrò +18
[Shortened for arXiv] We conduct a systematic search for quiescent galaxies at in six extragalactic deep fields observed with NIRCam, with t…
The Role of Black Hole Feedback on Size and Structural Evolution in Massive Galaxies
Ena Choi, Rachel S. Somerville, Jeremiah P. Ostriker +2
We use cosmological hydrodynamical simulations to investigate the role of feedback from accreting black holes on the evolution of sizes, compactness, stellar core density and speci…
Synthetic nebular emission from massive galaxies I: origin of the cosmic evolution of optical emission-line ratios
Michaela Hirschmann, Stephane Charlot, Anna Feltre +4
Galaxies occupy different regions of the [OIII]/H-versus-[NII]/H emission-line ratio diagram in the distant and local Universe. We investigate the…
Reinterpreting the puzzling properties of z>6 galaxies within a variable IMF framework
Fabio Fontanot, Gabriella De Lucia, Lizhi Xie +6
Recent results form the James Webb Space Telescope (JWST) report space densities for bright and massive galaxies at z>7 that far exceed expectations of theoretical models of galaxy…
Dusty Starbursts Masquerading as Ultra-high Redshift Galaxies in JWST CEERS Observations
Jorge A. Zavala, Veronique Buat, Caitlin M. Casey +121
Lyman Break Galaxy (LBG) candidates at z>10 are rapidly being identified in JWST/NIRCam observations. Due to the (redshifted) break produced by neutral hydrogen absorption of rest-…
The Atlas3D project - XXVI. HI discs in real and simulated fast and slow rotators
Paolo Serra, Ludwig Oser, Davor Krajnovic +24
One quarter of all nearby early-type galaxies (ETGs) outside Virgo host a disc/ring of HI with size from a few to tens of kpc and mass up to ~1e+9 solar masses. Here we investigate…
The quasi-star model for Little Red Dots: potential and challenges
Fabrizio Gentile, Mauro Giavalisco, Emanuele Daddi +25
(Abridged) Little Red Dots (LRDs) are a class of sources discovered by JWST observationally defined by a "V-shaped" rest-frame UV-Optical SED, a compact or unresolved morphology, a…
On the origin of globular clusters in a hierarchical Universe
Gabriella De Lucia, J. M. Diederik Kruijssen, Sebastian Trujillo-Gomez +2
We present an end-to-end description of the formation process of globular clusters (GCs) which combines a treatment for their formation and dynamical evolution within galaxy haloes…
RUBIES: a complete census of the bright and red distant Universe with JWST/NIRSpec
Anna de Graaff, Gabriel Brammer, Andrea Weibel +25
We present the Red Unknowns: Bright Infrared Extragalactic Survey (RUBIES), providing JWST/NIRSpec spectroscopy of red sources selected across ~150 arcmin from public JWST/NIRC…
HI-selected Galaxies in Hierarchical Models of Galaxy Formation and Evolution
Anna Zoldan, Gabriella De Lucia, Lizhi Xie +2
In this work, we study the basic statistical properties of HI-selected galaxies extracted from six different semi-analytic models, all run on the same cosmological N-body simulatio…
From "The Cliff" to "Virgil": Mapping the Spectral Diversity of Little Red Dots with JWST/NIRSpec
Guillermo Barro, Pablo G. Perez-Gonzalez, Dale Kocevski +26
One of JWST's most unexpected discoveries is the emergence of "Little Red Dots'' (LRDs): compact sources at with blue rest-frame UV continua, red optical slopes, and…
MISTRAL: a model for AGN winds from radiatively efficient accretion in cosmological simulations
Marion Farcy, Michaela Hirschmann, Rachel S. Somerville +11
Feedback from active galactic nuclei (AGN) is crucial for regulating galaxy evolution. Motivated by observations of broad absorption line winds from rapidly accreting supermassive…
The Complete CEERS Early Universe Galaxy Sample: A Surprisingly Slow Evolution of the Space Density of Bright Galaxies at z ~ 8.5-14.5
Steven L. Finkelstein, Gene C. K. Leung, Micaela B. Bagley +52
We present a sample of 88 candidate z~8.5-14.5 galaxies selected from the completed NIRCam imaging from the Cosmic Evolution Early Release Science (CEERS) survey. These data cover…
Mysteries of Capotauro: investigating the puzzling nature of an extreme F356W-dropout
Giovanni Gandolfi, Giulia Rodighiero, Marco Castellano +38
JWST has uncovered a diverse population of extreme near-infrared dropouts, including ultra high-redshift () galaxy candidates, dust-obscured galaxies challenging dust product…
You Shall Not Pass! The propagation of low/moderate powered jets through a turbulent interstellar medium
Olga Borodina, Yueying Ni, Jake S. Bennett +6
Feedback from black hole-powered jets has been invoked in many cosmological simulations to regulate star formation and quench galaxies. Despite this, observational evidence of how…
Unveiling the distant Universe: Characterizing Galaxies in the first epoch of COSMOS-Web
Maximilien Franco, Hollis B. Akins, Caitlin M. Casey +47
We report the identification of 15 galaxy candidates at using the initial COSMOS-Web JWST observations over 77 arcmin through four NIRCam filters (F115W, F150W, F277W,…
MAGAZ3NE: Massive, Extremely Dusty Galaxies at Lead to Photometric Overestimation of Number Densities of the Most Massive Galaxies at
Ben Forrest, M. C. Cooper, Adam Muzzin +17
We present rest-frame optical spectra from Keck/MOSFIRE and Keck/NIRES of 16 candidate ultramassive galaxies targeted as part of the Massive Ancient Galaxies at Near-Infrared…
Near-infrared emission line diagnostics for AGN from the local Universe to redshift 3
Antonello Calabrò, Laura Pentericci, Anna Feltre +35
Optical rest-frame spectroscopic diagnostics are usually employed to distinguish between star formation and AGN-powered emission. However, this method is biased against dusty sourc…
The Noctua Suite of Simulations -- The Difficulty of Growing Massive Black Holes in Low-Mass Dwarf Galaxies
Jonathan Petersson, Michaela Hirschmann, Robin G. Tress +6
Aims. We study the individual and cumulative impact of stellar feedback processes on massive black hole (MBH) growth in a simulated low-mass dwarf galaxy. Methods. A suite of high-…
COSMOS-Web: Comprehensive Data Reduction for Wide-Area JWST NIRCam Imaging
Maximilien Franco, Caitlin M. Casey, Anton M. Koekemoer +37
We present the data reduction methodology used for the COSMOS-Web survey JWST NIRCam data. Covering 0.54 deg^2 with four broadband filters (F115W, F150W, F277W, F444W) and a total…
The filament determination depends on the tracer: comparing filaments based on dark matter particles and galaxies in the GAEA semi-analytic model
Daria Zakharova, Benedetta Vulcani, Gabriella De Lucia +3
Filaments are elongated structures that connect groups and clusters of galaxies and are visually the striking feature in cosmological maps. In the literature, typically filaments a…
Spectroscopic Confirmation of CEERS NIRCam-selected Galaxies at
Pablo Arrabal Haro, Mark Dickinson, Steven L. Finkelstein +45
We present JWST/NIRSpec prism spectroscopy of seven galaxies selected from the Cosmic Evolution Early Release Science Survey (CEERS) NIRCam imaging with photometric redshifts z_pho…
Origin of the anti-hierarchical growth of black holes
Michaela Hirschmann, Rachel S. Somerville, Thorsten Naab +1
Observational studies have revealed a "downsizing" trend in black hole (BH) growth: the number densities of luminous AGN peak at higher redshifts than those of faint AGN. This woul…
A Long Time Ago in a Galaxy Far, Far Away: A Candidate z ~ 12 Galaxy in Early JWST CEERS Imaging
Steven L. Finkelstein, Micaela B. Bagley, Pablo Arrabal Haro +117
We report the discovery of a candidate galaxy with a photo-z of z~12 in the first epoch of the JWST Cosmic Evolution Early Release Science (CEERS) Survey. Following conservative se…
Simulations of gas inflow in the Milky Way I. Stellar-Feedback-Regulated Transport from the Central Molecular Zone to the Circumnuclear disk
Zi-Xuan Feng, Mattia C. Sormani, Robin G. Tress +18
We perform hydrodynamical simulations with radially varying resolution to study the effects of stellar feedback on the radial inflow of gas from the Central Molecular Zone (CMZ, $R…
The Co-Evolution of Total Density Profiles and Central Dark Matter Fractions in Simulated Early-Type Galaxies
Rhea-Silvia Remus, Klaus Dolag, Thorsten Naab +4
We present evidence from cosmological hydrodynamical simulations for a co-evolution of the slope of the total (dark and stellar) mass density profile, gamma_tot, and the dark matte…
Cosmological simulations of black hole growth: AGN luminosities and downsizing
Michaela Hirschmann, Klaus Dolag, Alexandro Saro +3
In this study, we present a detailed, statistical analysis of black hole growth and the evolution of active galactic nuclei (AGN) using cosmological hydrodynamic simulations run do…
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 +24
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-…
Unveiling the Dark Side of UV/Optical Bright Galaxies: Optically Thick Dust Absorption
Yingjie Cheng, Mauro Giavalisco, Bren E. Backhaus +21
Over the past decades, a population of galaxies invisible in optical/near-infrared, but bright at longer wavelengths, have been identified through color selections. These so-called…
The definition of environment and its relation to the quenching of galaxies at z=1-2 in a hierarchical Universe
Matteo Fossati, David J. Wilman, Fabio Fontanot +6
A well calibrated method to describe the environment of galaxies at all redshifts is essential for the study of structure formation. Such a calibration should include well understo…
Little Red Dot Host Galaxy Black Hole Star: A Gas-Enshrouded Heart at the Center of Every Little Red Dot
Wendy Q. Sun, Rohan P. Naidu, Jorryt Matthee +30
The central engines of Little Red Dots (LRDs) may be ``black hole stars" (BH*s), early stages of black hole growth characterized by dense gas envelopes. So far, the most direct evi…
The Cosmic Evolution Early Release Science Survey (CEERS)
Steven L. Finkelstein, Micaela B. Bagley, Pablo Arrabal Haro +96
We present the Cosmic Evolution Early Release Science (CEERS) Survey, a 77.2 hour Director's Discretionary Early Release Science Program. CEERS demonstrates, tests, and validates e…
Finding Direct-Collapse Black Holes at Birth
Daniel J. Whalen, Marco Surace, Carla Bernhardt +4
Direct-collapse black holes (DCBHs) are currently one of the leading contenders for the origins of the first quasars in the universe, over 300 of which have now been found at …
A census of quiescent galaxies across with JWST/MIRI: Mass-dependent number density evolution of quiescent galaxies in the early Universe
Tiancheng Yang, Tao Wang, Ke Xu +12
Recent JWST observations have revealed a large population of quiescent galaxies (QGs) at high redshift (), challenging current models of early galaxy formation and quen…
Clumpiness of galaxies revealed in the near-infrared with COSMOS-Web
Wilfried Mercier, Boris Sindhu Kalita, Marko Shuntov +30
Clumps in the rest-frame UV emission of galaxies have been observed for decades. Since the launch of the James Webb Space Telescope (JWST), a large population is detected in the re…
Broad-Line AGN at 3.5<z<6: The Black Hole Mass Function and a Connection with Little Red Dots
Anthony J. Taylor, Steven L. Finkelstein, Dale D. Kocevski +48
We present a sample of 50 H-alpha detected broad-line active galactic nuclei (BLAGN) at redshifts 3.5<z<6.8 using data from the CEERS and RUBIES surveys. We select these sources di…
Simulations of the 21cm emission line for upcoming large-scale HI galaxy surveys
Joël Mayor, Marta Spinelli, Gabriella De Lucia +5
Upcoming galaxy surveys with the SKA Observatory will detect neutral hydrogen (HI) across unprecedented volumes, and their scientific return will crucially depend on predictive mod…
What you see is what you get: empirically measured bolometric luminosities of Little Red Dots
Jenny E. Greene, David J. Setton, Lukas J. Furtak +27
New populations of red active galactic nuclei (known as ``Little Red Dots'') discovered by JWST exhibit remarkable spectral energy distributions. Leveraging X-ray through far-infra…
RUBIES: JWST/NIRSpec resolves evolutionary phases of dusty star-forming galaxies at
Olivia R. Cooper, Gabriel Brammer, Kasper E. Heintz +24
The dearth of high quality spectroscopy of dusty star-forming galaxies (DSFGs) -- the main drivers of the assembly of dust and stellar mass at the peak of activity in the Universe…
Hidden Little Monsters: Spectroscopic Identification of Low-Mass, Broad-Line AGN at with CEERS
Dale D. Kocevski, Masafusa Onoue, Kohei Inayoshi +34
We report on the discovery of two low-luminosity, broad-line AGN at identified using JWST NIRSpec spectroscopy from the CEERS Survey. We detect broad H emission from both…
A Census from JWST of Extreme Emission Line Galaxies Spanning the Epoch of Reionization in CEERS
Kelcey Davis, Jonathan R. Trump, Raymond C. Simons +29
We present a sample of 1165 extreme emission-line galaxies (EELGs) at 4<z<9 selected using James Webb Space Telescope (JWST) NIRCam photometry in the Cosmic Evolution Early Release…
Variations of the initial mass function in semi-analytical models: implications for the mass assembly and the chemical enrichment of galaxies in the GAEA model
Fabio Fontanot, Gabriella De Lucia, Michaela Hirschmann +3
In this work, we investigate the implications of the Integrated Galaxy-wide stellar Initial Mass Function (IGIMF) approach in the framework of the semi-analytic model GAEA (GAlaxy…
The Rise of Faint, Red AGN at : A Sample of Little Red Dots in the JWST Extragalactic Legacy Fields
Dale D. Kocevski, Steven L. Finkelstein, Guillermo Barro +54
We present a sample of 341 "little red dots" (LRDs) spanning the redshift range using data from the CEERS, PRIMER, JADES, UNCOVER and NGDEEP surveys. Unlike past use of…
Physical properties of galaxies and the UV Luminosity Function from to in COSMOS-Web
Maximilien Franco, Caitlin M. Casey, Hollis B. Akins +37
We present measurements of the rest-frame ultraviolet luminosity function (UVLF) in three redshift bins over -14 from the JWST COSMOS-Web survey. Our samples, selected us…
High-redshift metallicity calibrations for JWST spectra: insights from line emission in cosmological simulations
Michaela Hirschmann, Stephane Charlot, Rachel S. Somerville
Optical emission-line ratios are traditionally used to estimate gas metallicities from observed galaxy spectra. While such estimators have been calibrated primarily at low redshift…
Significant Evidence of an AGN Contribution in GHZ2 at z = 12.34
Oscar A. Chavez Ortiz, Steven L. Finkelstein, Adele Plat +19
GHZ2 is among the highest-redshift galaxies discovered to date, exhibiting a spectrum rich with prominent emission lines in the rest-frame ultraviolet (UV) and optical. These featu…
CEERS Key Paper VIII: Emission Line Ratios from NIRSpec and NIRCam Wide-Field Slitless Spectroscopy at z>2
Bren E. Backhaus, Jonathan R. Trump, Nor Pirzkal +37
We use James Webb Space Telescope Near-Infrared Camera Wide Field Slitless Spectroscopy (NIRCam WFSS) and Near-Infrared spectrograph (NIRSpec) in the Cosmic Evolution Early Release…
Cosmological simulations of black hole growth II: how (in)significant are merger events for fuelling nuclear activity?
Lisa K. Steinborn, Michaela Hirschmann, Klaus Dolag +5
Which mechanism(s) are mainly driving nuclear activity in the centres of galaxies is a major unsettled question. In this study, we investigate the statistical relevance of galaxy m…
Strong stellar-driven outflows shape the evolution of galaxies at cosmic dawn
Fabio Fontanot, Michaela Hirschmann, Gabriella De Lucia
We study galaxy mass assembly and cosmic star formation rate (SFR) at high-redshift (z4), by comparing data from multiwavelength surveys with predictions from the GAlaxy Evolu…
RUBIES spectroscopically confirms the high number density of quiescent galaxies from
Yunchong Zhang, Anna de Graaff, David J. Setton +21
We present the number density of massive () quiescent galaxies at using JWST NIRSpec PRISM spectra. This work relies on spectra fr…
NeutralUniverseMachine: Predictions of HI gas in Different Theoretical Models
Lingkun Wen, Hong Guo, Wenlin Ma +4
We investigate the distribution and evolution of HI gas in different theoretical models, including hydro-dynamical simulations (Illustris-TNG and SIMBA), semi-analytic models (GAEA…
The formation of supermassive black holes from Population III.1 seeds. III. Galaxy evolution and black hole growth from semi-analytic modelling
Vieri Cammelli, Pierluigi Monaco, Jonathan C. Tan +5
We present an implementation of Pop III.1 seeding of supermassive black holes (SMBHs) in a theoretical model of galaxy formation and evolution to assess the growth the SMBH populat…
Uncovering a Massive z~7.7 Galaxy Hosting a Heavily Obscured Radio-Loud QSO Candidate in COSMOS-Web
Erini Lambrides, Marco Chiaberge, Arianna Long +47
In this letter, we report the discovery of the highest redshift, heavily obscured, radio-loud AGN candidate selected using JWST NIRCam/MIRI, mid-IR, sub-mm, and radio imaging in th…
Ionized gas kinematics of massive elliptical galaxies in CALIFA and in cosmological zoom-in simulations
Jan Florian, Bodo Ziegler, Michaela Hirschmann +5
(Abridged) We present an investigation of kinematical imprints of AGN feedback on the Warm Ionized gas Medium (WIM) of massive early-type galaxies (ETGs). To this end, we take a tw…
Prevailing thermally-pulsing-asymptotic-giant branch stars in the near-infrared rest-frame spectra of distant quiescent galaxies: towards robust galaxy ages and masses
Shiying Lu, Emanuele Daddi, Claudia Maraston +13
We recently reported the discovery of prominent features from the thermally pulsing asymptotic-giant-branch (TP-AGB) phase in the rest-frame near-infrared of a massive quiescent ga…
The clustering of C IV and Si IV at the end of reionisation: A perspective from the E-XQR-30 survey
Louise Welsh, Valentina D'Odorico, Fabio Fontanot +14
We aim to study the clustering of metal absorption lines and the structures that they arise in as a function of cosmic time. We focus on C IV and Si IV absorption features that are…
On The Role of Supermassive Black Holes in Quenching Star Formation in Local Central Galaxies
Nikhil Arora, Matteo Fossati, Fabio Fontanot +2
In this work, we analyze the role of AGN feedback in quenching star formation for massive, central galaxies in the local Universe. In particular, we compare the prediction of two s…