activity
20232026
most citedMost of the photons that reionized the Universe came from dwarf galaxies

148 citations · 779 across the 44 of their papers we have counts for

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18 papers · 1 filter

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★ 16 cited

PANORAMIC: Discovery of an Ultra-Massive Grand-Design Spiral Galaxy at

Mengyuan Xiao, Christina C. Williams, Pascal A. Oesch +26

We report the discovery of an ultra-massive grand-design red spiral galaxy, named Zhúlóng (Torch Dragon), at in the JWST PANORAMIC survey, identi…

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★ 6 cited

Little Red Dots at an Inflection Point: Ubiquitous "V-Shaped" Turnover Consistently Occurs at the Balmer Limit

David J. Setton, Jenny E. Greene, Anna de Graaff +18

Among the most puzzling early discoveries of JWST are "Little Red Dots" -- compact red sources that host broad Balmer emission lines and, in many cases, exhibit a "V shaped" change…

astro-ph.GA2024★ 6 cited

All the Little Things in Abell 2744: 1000 Gravitationally Lensed Dwarf Galaxies at from JWST NIRCam Grism Spectroscopy

Rohan P. Naidu, Jorryt Matthee, Ivan Kramarenko +31

Dwarf galaxies hold the key to crucial frontiers of astrophysics, however, their faintness renders spectroscopy challenging. Here we present the JWST Cycle 2 survey, All the Little…

astro-ph.GA2024★ 50 cited

UNCOVER: 404 Error -- Models Not Found for the Triply Imaged Little Red Dot A2744-QSO1

Yilun Ma, Jenny E. Greene, David J. Setton +20

JWST has revealed an abundance of compact, red objects at dubbed "little red dots" (LRDs), whose SEDs display a faint blue UV continuum followed by a steep rise in th…

astro-ph.GA2024★ 2 cited

The formation histories of massive and quiescent galaxies in the 3 < z < 4.5 Universe

Themiya Nanayakkara, Karl Glazebrook, Corentin Schreiber +16

We present the formation histories of 19 massive () quiescent (sSFR) galaxy candidates at z~3.0-4.5 observed using JWST/NIRSpec. This completes th…

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 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★ 36 cited

The Extreme Low-mass End of the Mass-Metallicity Relation at

Iryna Chemerynska, Hakim Atek, Pratika Dayal +17

The mass-metallicity relation (MZR) provides crucial insights into the baryon cycle in galaxies and provides strong constraints on galaxy formation models. We use \jwst\ NIRSpec ob…

astro-ph.GA2024★ 128 cited

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…

astro-ph.GA2024★ 46 cited

JWST FRESCO: a comprehensive census of H+[OIII] emitters at 6.8<z<9.0 in the GOODS fields

R. A. Meyer, P. A. Oesch, E. Giovinazzo +27

We present the census of H+[OIII] 4960,5008 Åemitters at 6.8<z<9.0 from the JWST FRESCO survey over 124 arcmin in the GOODS-North and GOODS-South fields. Our unbiased spectr…

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…

astro-ph.GA2024★ 11 cited

Efficient formation of a massive quiescent galaxy at redshift 4.9

Anna de Graaff, David J. Setton, Gabriel Brammer +23

Within the established framework of structure formation, galaxies start as systems of low stellar mass and gradually grow into far more massive galaxies. The existence of massive g…

astro-ph.GA2024★ 98 cited

Galaxy Build-up in the first 1.5 Gyr of Cosmic History: Insights from the Stellar Mass Function at from JWST NIRCam Observations

Andrea Weibel, Pascal A. Oesch, Laia Barrufet +26

Combining the public JWST/NIRCam imaging programs CEERS, PRIMER and JADES, spanning a total area of , we obtain a sample of 30,000 galaxies at $z_{\rm p…

astro-ph.GA2024★ 81 cited

RUBIES: JWST/NIRSpec Confirmation of an Infrared-luminous, Broad-line Little Red Dot with an Ionized Outflow

Bingjie Wang, Anna de Graaff, Rebecca L. Davies +22

The JWST discovery of ``little red dots'' (LRDs) is reshaping our picture of the early Universe, yet the physical mechanisms driving their compact size and UV-optical colors remain…

astro-ph.GA2024★ 4 cited

UNCOVER NIRSpec/PRISM Spectroscopy Unveils Evidence of Early Core Formation in a Massive, Centrally Dusty Quiescent Galaxy at

David J. Setton, Gourav Khullar, Tim B. Miller +28

We report the spectroscopic confirmation of a massive (), HST-dark () quiescent galaxy at…

astro-ph.IM2024

HAYATE: Photometric redshift estimation by hybridising machine learning with template fitting

Shingo Tanigawa, Karl Glazebrook, Colin Jacobs +2

Machine learning photo-z methods, trained directly on spectroscopic redshifts, provide a viable alternative to traditional template fitting methods but may not generalise well on n…