524 citations · 3.5k across the 113 of their papers we have counts for
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Ionizing Photon Production Efficiencies and Chemical Abundances at Cosmic Dawn Revealed by Ultra-Deep Rest-Frame Optical Spectroscopy of JADES-GS-z14-0
Jakob M. Helton, Jane E. Morrison, Kevin N. Hainline +40
JWST has discovered an early period of galaxy formation that was more vigorous than expected, which has challenged our understanding of the early Universe. In this work, we present…
The AGN nature of strong CIII emitters in the Early Universe with JWST
F. Arevalo-Gonzalez, R. Tripodi, M. Llerena +21
The semi-forbidden CIII] 1907,1909 doublet is a key tracer of high-ionization emission in the early universe. We present a study of CIII] emission in galaxies at z=5-7, using p…
THRILS -- The High-(Redshift+Ionization) Line Search: Program Description & Redshift Catalog
Taylor A. Hutchison, Rebecca L. Larson, Pablo Arrabal Haro +46
To date, many spectroscopic confirmations of z>7 galaxies have been obtained using JWST/NIRSpec prism observations, with most of their physical properties inferred from these obser…
The Mass-Metallicity Relation and its Observational Effects at z~3-6
Zach Lewis, Michael V. Maseda, Anna de Graaff +21
The correlation between galaxy stellar mass and gas-phase metallicity, known as the mass-metallicity relation (MZR), gives key insights into the processes that govern galaxy evolut…
JWST & the Waz Arc I: Spatially Resolving the Physical Conditions within a Post-Starburst Galaxy at Redshift 5 with NIRSpec IFS
Taylor A. Hutchison, Gourav Khullar, Jane R. Rigby +22
We present NIRSpec/IFS observations of a rest-frame UV-bright, massive ( M, ) galaxy highly magnified by gravitational-lensing observed just…
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…
JWST/NIRSpec Reveals a Small Population of Dominant Dust-Obscured Ionizing Sources in Galaxies at 1 < z < 3
Si-Rui Ge, Nikko J. Cleri, Joel Leja +2
Rest-frame optical emission line diagnostics are often used to help classify ionizing sources within galaxies. However, rest-frame optical tracers can miss sources with high dust a…
Little Red Dots host Black Hole Stars: A unified family of gas-reddened AGN revealed by JWST/NIRSpec spectroscopy
Anna de Graaff, Raphael E. Hviding, Rohan P. Naidu +34
We use the DAWN JWST Archive to construct and characterise a sample of 146 little red dots (LRDs) across 2.0<z<9.3, selecting all sources with v-shaped UV-optical continua from NIR…
Where Galaxies Go to Die: The Environments of Massive Quiescent Galaxies at
Ian McConachie, Anna de Graaff, Michael V. Maseda +25
At low redshift, massive quiescent galaxies (MQGs) are most frequently found in massive, rich galaxy clusters, but at high redshift the trend is less clear. Here, we present spectr…
The Relationship at : Big Black Holes in Little Red Dots
Brenda L. Jones, Dale D. Kocevski, Fabio Pacucci +25
JWST has identified a large population of faint, broad-line active galactic nuclei (AGN) in the early universe that are powered by black holes (BHs) that often appear overmassive r…
The Prevalence of Bursty Star Formation in Low-Mass Galaxies at z=1-7 from Hα-to-UV Diagnostics
Marissa N. Perry, Anthony J. Taylor, Oscar A. Chavez Ortiz +15
We present an analysis of bursty star-formation histories (SFHs) of 346 star-forming galaxies at , selected from JWST/NIRSpec G395M and PRISM spectroscopy provided b…
Extreme equivalent width-selected low-mass starbursts at : insights into their role in cosmic reionization
M. Llerena, L. Pentericci, R. Amorín +22
We investigate the properties of extreme emission line galaxies (EELGs) at and their role in reionization. Compact, low-mass galaxies with intense optical emission lines ar…
Discovery of Multiply Ionized Iron Emission Powered by an Active Galactic Nucleus in a z~7 Little Red Dot
Erini Lambrides, Rebecca Larson, Taylor Hutchison +50
Some of the most puzzling discoveries of NASA's JWST in the early Universe surround the surprising abundance of compact red sources, which show peculiar continuum shapes and broad…
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…
The Missing Hard Photons of Little Red Dots: Their Incident Ionizing Spectra Resemble Massive Stars
Bingjie Wang, Joel Leja, Harley Katz +11
The nature of Little Red Dots (LRDs) has largely been investigated through their continuum emission, with lines assumed to arise from a broad-line region. In this paper, we instead…
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…
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…
RUBIES: A Spectroscopic Census of Little Red Dots; All V-Shaped Point Sources Have Broad Lines
Raphael E. Hviding, Anna de Graaff, Tim B. Miller +16
The physical nature of Little Red Dots (LRDs) - a population of compact, red galaxies revealed by JWST - remains unclear. Photometric samples are constructed from varying selection…
CEERS: Forging the First Dust Grains in the Universe? A Population of Galaxies with spectroscopically-derived Extremely Low Dust Attenuation (GELDA) at 4.0<z<11.4
Denis Burgarella, Véronique Buat, Patrice Theulé +35
We investigate the coevolution of metals and dust in 173 galaxies at using NIRSpec spectroscopy. Focusing on galaxies with extremely low dust attenuation, we explore t…
Galaxies in the Epoch of Reionization Are All Bark and No Bite -- Plenty of Ionizing Photons, Low Escape Fractions
Casey Papovich, Justin W. Cole, Weida Hu +27
Early results from JWST suggest that epoch-of-reionization (EoR) galaxies produce copious ionizing photons, which, if they escape efficiently, could cause reionization to occur too…
CAPERS Observations of Two UV-Bright Galaxies at z>10. More Evidence for Bursting Star Formation in the Early Universe
Vasily Kokorev, Óscar A. Chávez Ortiz, Anthony J. Taylor +38
We present the first results from the CAPERS survey, utilizing PRISM observations with the JWST/NIRSpec MSA in the PRIMER-UDS field. With just 14 % of the total planned data volume…
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 galact…
Emission-Line Diagnostics at z>4: [OIII]λ4363/Hγ
Bren E. Backhaus, Nikko J. Cleri, Jonathan R. Trump +17
We use JWST Near-Infrared Spectrograph (NIRSpec) observations from the the Cosmic Evolution Early Release survey (CEERS), GLASS-JWST ERS (GLASS), and JWST Advanced Deep Extragalact…
Little impact of mergers and galaxy morphology on the production and escape of ionizing photons in the early Universe
S. Mascia, L. Pentericci, M. Llerena +28
Compact, star-forming galaxies with high star formation rate surface densities () are often efficient Lyman continuum (LyC) emitters at , likely as inten…