41 citations · 177 across the 25 of their papers we have counts for
24 papers · 1 filter
Calcium Triplet Absorption is Common around Little Red Dots
Jenny E. Greene, Hanpu Liu, Raphael E. Hviding +29
We present new evidence for an optically thick atmosphere surrounding Little Red Dots (LRDs) in the form of Ca absorption at rest-frame 8500A, the calcium triplet (CaT). Building o…
Balmer Absorption Series and Broad Metal Lines in Two Luminous Little Red Dots
Bingjie Wang, Jenny E. Greene, Hanpu Liu +21
Balmer absorption is common among little red dots (LRDs), but absorbers at or redward of systemic are rare, occurring in only \% of H absorbers. In this paper, we stu…
Evidence for Shallow Nebular Attenuation Curves and Patchy Dust Geometry at z~2 with Pa-beta/H-alpha Measurements from JWST-MegaScience Medium Band Photometry
Brian Lorenz, Katherine A. Suess, Mariska Kriek +25
We constrain the nebular attenuation curve and investigate dust geometry in star-forming galaxies at cosmic noon using photometric medium-band emission line measurements. We measur…
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…
The Blue Jay Survey: Deep JWST Spectroscopy for a Representative Sample of Galaxies at Cosmic Noon
Sirio Belli, Letizia Bugiani, Minjung Park +17
We present the Blue Jay survey, a cycle 1 JWST program aimed at studying the stellar and gas content of galaxies at cosmic noon. The survey consists of deep spectroscopy for 153 ta…
The first GLIMPSE of the faint galaxy population at Cosmic Dawn with JWST: The evolution of the ultraviolet luminosity function across z~9-15
Iryna Chemerynska, Hakim Atek, Lukas J. Furtak +27
Using ultra-deep JWST NIRCam imaging from the GLIMPSE Survey, enhanced by gravitational lensing of the AbellS1063 cluster, we investigate the faintest galaxies ever observed in the…
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…
MINERVA: A NIRCam Medium Band and MIRI Imaging Survey to Unlock the Hidden Gems of the Distant Universe
Adam Muzzin, Katherine A. Suess, Danilo Marchesini +81
We present an overview of the MINERVA survey, a 259.8 hour (prime) and 127 hour (parallel) Cycle 4 treasury program on the James Webb Space Telescope (JWST). MINERVA is obtaining 8…
Enhanced Star Formation and Black Hole Accretion Rates in Galaxy Mergers in IllustrisTNG50
Aimee L. Schechter, Shy Genel, Bryan Terrazas +6
Many theoretical and observational studies have suggested that galaxy mergers may trigger enhanced star formation or active galactic nuclei (AGN) activity. We present an analysis o…
Even redder than we knew: color and evolution up to from JWST/NIRCam photometry
A. van der Wel, M. Martorano, D. Marchesini +14
JWST/NIRCam provides rest-frame near-IR photometry of galaxies up to with exquisite depth and accuracy. This affords an unprecedented view of the evolution of the UV-optica…
Measuring Emission Lines with JWST-MegaScience Medium-Bands: A New Window into Dust and Star Formation at Cosmic Noon
Brian Lorenz, Katherine A. Suess, Mariska Kriek +23
We demonstrate the power of JWST-NIRCam medium-band photometry to measure emission line fluxes and study dust and star formation properties of galaxies at cosmic noon. In this work…
A Cosmic Miracle: A Remarkably Luminous Galaxy at Confirmed with JWST
Rohan P. Naidu, Pascal A. Oesch, Gabriel Brammer +43
JWST has revealed a stunning population of bright galaxies at surprisingly early epochs, , where few such sources were expected. Here we present the most distant example of t…
UNCOVER/MegaScience: No Evidence of Environmental Quenching in a z2.6 Proto-cluster
Richard Pan, Katherine A. Suess, Danilo Marchesini +22
Environmental quenching -- where interactions with other galaxies and/or the intra-cluster medium (ICM) suppress star formation in low-mass galaxies -- has been well-established as…
Investigating photometric and spectroscopic variability in the multiply-imaged Little Red Dot A2744-QSO1
Lukas J. Furtak, Amy R. Secunda, Jenny E. Greene +25
JWST observations have uncovered a new population of red, compact objects at high redshifts dubbed `Little Red Dots' (LRDs), which typically show broad emission lines and are thoug…
Evolution of the Sérsic Index up to z=2.5 from JWST and HST
Marco Martorano, Arjen van der Wel, Maarten Baes +12
The James Webb Space Telescope (JWST) is unveiling the rest-frame near-IR structure of galaxies. We measure the evolution with redshift of the rest-frame optical and near-IR Sérsic…
An unambiguous AGN and a Balmer break in an Ultraluminous Little Red Dot at z=4.47 from Ultradeep UNCOVER and All the Little Things Spectroscopy
Ivo Labbe, Jenny E. Greene, Jorryt Matthee +37
We present a detailed exploration of the most optically-luminous Little Red Dot (erg/s, erg/s, F444W=22AB) found to date. Located in the Abell 2744 fie…
JWST UNCOVERs the Optical Size - Stellar Mass Relation at : Rapid Growth in the Sizes of Low Mass Galaxies in the First Billion Years of the Universe
Tim B. Miller, Katherine A. Suess, David J. Setton +21
We study the rest-frame optical and ultraviolet morphology of galaxies in the first billion years of the Universe. Using JWST data from the UNCOVER and MegaScience surveys targetin…
A Glimpse of the New Redshift Frontier Through Abell S1063
Vasily Kokorev, Hakim Atek, John Chisholm +31
We report the discovery of two galaxy candidates at redshifts between in JWST observations from the GLIMPSE survey. These robust sources were identified using a combi…
An Hα view of galaxy build-up in the first 2 Gyr: luminosity functions at z~4-6.5 from NIRCam/grism spectroscopy
Alba Covelo-Paz, Emma Giovinazzo, Pascal A. Oesch +22
The Hα nebular emission line is an optimal tracer for recent star formation in galaxies. With the advent of JWST, this line has recently become observable at z>3 for the first time…
UNCOVERing the High-redshift AGN Population among Extreme UV Line Emitters
Helena Treiber, Jenny Greene, John R. Weaver +23
JWST has revealed diverse new populations of high-redshift () AGN and extreme star-forming galaxies that challenge current models. In this paper, we use rest-frame UV em…
The Small Sizes and High Implied Densities of `Little Red Dots' with Balmer Breaks Could Explain Their Broad Emission Lines Without an AGN
Josephine F. W. Baggen, Pieter van Dokkum, Gabriel Brammer +10
Early JWST studies found an apparent population of massive, compact galaxies at redshifts . Recently three of these galaxies were shown to have prominent Balmer breaks,…
The UNCOVER Survey: First Release of Ultradeep JWST/NIRSpec PRISM spectra for ~700 galaxies from z~0.3-13 in Abell 2744
Sedona H. Price, Rachel Bezanson, Ivo Labbe +38
We present the design and observations of low resolution JWST/NIRSpec PRISM spectroscopy from the Ultradeep NIRSpec and NIRCam ObserVations before the Epoch of Reionization (UNCOVE…
Medium Bands, Mega Science: a JWST/NIRCam Medium-Band Imaging Survey of Abell 2744
Katherine A. Suess, John R. Weaver, Sedona H. Price +39
In this paper, we describe the "Medium Bands, Mega Science" JWST Cycle 2 survey (JWST-GO-4111) and demonstrate the power of these data to reveal both the spatially-integrated and s…
The HDUV Survey: Six Lyman Continuum Emitter Candidates at z~2 Revealed by HST UV Imaging
R. P. Naidu, P. A. Oesch, N. Reddy +14
We present six galaxies at z~2 that show evidence of Lyman continuum (LyC) emission based on the newly acquired UV imaging of the Hubble Deep UV legacy survey (HDUV) conducted with…