activity
20162026
most citedThe HDUV Survey: Six Lyman Continuum Emitter Candidates at z~2 Revealed by HST UV Imaging

41 citations · 177 across the 25 of their papers we have counts for

collaborators

26 papers

astro-ph.GA2026

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…

astro-ph.GA2026

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…

astro-ph.GA2026

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…

astro-ph.IM2025

Picture an Astronomer: Best Practices for Retaining Talent in Astrophysics

Ava Polzin, Katherine E. Whitaker, C. Megan Urry +85

Women are consistently underrepresented in astrophysics yet are simultaneously subject to disproportionate attrition at every career stage. This disparity between demonstrated effi…

astro-ph.GA2025★ 2 cited

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…

astro-ph.GA2025

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…

astro-ph.GA2025★ 11 cited

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…

astro-ph.GA2025

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…

astro-ph.GA2025★ 2 cited

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…

astro-ph.GA2025

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…

astro-ph.GA2025★ 3 cited

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…

astro-ph.GA2025

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…

astro-ph.GA2025★ 9 cited

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…

astro-ph.GA2025

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…

astro-ph.GA2025★ 38 cited

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…

astro-ph.GA2025★ 10 cited

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…

astro-ph.GA2024★ 8 cited

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…

astro-ph.GA2024★ 3 cited

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…

astro-ph.GA2024★ 1 cited

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…

astro-ph.GA2024★ 30 cited

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…

astro-ph.GA2024★ 14 cited

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…

astro-ph.GA2024★ 2 cited

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,…

astro-ph.GA2024★ 2 cited

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…

astro-ph.GA2024★ 1 cited

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…