activity
20102026
most citedThe Evolution of the Stellar Mass Functions of Star-Forming and Quiescent Galaxies to z = 4 from the COSMOS/UltraVISTA Survey

991 citations · 3k across the 74 of their papers we have counts for

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68 papers · 1 filter

astro-ph.GA2026

Beyond orientation: Evidence for distinct physical regimes among Little Red Dots and Little Blue Dots

L. Barrufet, J. S. Dunlop, M. L. Hamadouche +6

Little Red Dots (LRDs) and Little Blue Dots (LBDs) may represent the same population of compact active galactic nuclei (AGN) observed along different lines of sight. We test this s…

astro-ph.GA2026

A clear detection of proper motion confirms that the claimed galaxy candidate, "Capotauro'', is a Y-type brown dwarf

F. -Y. F. Liu, D. J. McLeod, B. J. Sutlieff +13

The compact red source ``Capotauro'', discovered in deep JWST imaging in 2025, has been suggested as a possible galaxy candidate at redshift on account of its extreme N…

astro-ph.GA2026

JWST PRIMER: Post-starburst galaxies dominate the low-mass quiescent galaxy population since z~2

Thomas de Lisle, David T. Maltby, Omar Almaini +10

We present the evolution of the stellar mass functions for photometrically selected star-forming, passive and post-starburst galaxies, based on JWST PRIMER observations of the Ultr…

astro-ph.GA2026

No hidden monsters: Probing recently-quenched galaxies for obscured AGN with JWST-PRIMER MIRI and NIRCam

Guillaume Hewitt, Omar Almaini, David Maltby +13

We investigate the role of obscured active galactic nuclei (AGN) in recently quenched post-starburst galaxies (PSBs), using a sample of 65 photometrically selected PSBs in the PRIM…

astro-ph.GA2026

The multiwavelength structure of post-starburst galaxies at 0.5 < z < 3 with JWST PRIMER: compact morphologies and residual disturbances

David T. Maltby, Omar Almaini, Vivienne Wild +9

We investigate the multi-wavelength structure of recently quenched post-starburst (PSB) galaxies at 0.5 < z < 3, using photometrically selected samples from the Ultra Deep Survey (…

astro-ph.GA2026

Using Ly Transmitted Spectrum to Probe IGM Transmission and Identify Ionized Structures in Cosmic Reionization

Weida Hu, Casey Papovich, Lu Shen +16

We present a study of intergalactic medium (IGM) transmission at using high-signal-to-noise JWST/NIRSpec prism spectroscopy of 143 galaxies at from the CAPE…

astro-ph.GA2026

A search for the first galaxies across deg of JWST imaging: new evidence for a rapid decline in star-formation activity at

D. J. McLeod, J. S. Dunlop, R. J. McLure +20

We present a new determination of the evolving galaxy UV luminosity function (LF) over the extreme redshift range , based on a wide-area search of 0.6 deg of JW…

astro-ph.GA2026★ 1 cited

Little Red Dots: One Photometric Tag Concealing Diverse Spectroscopic Flavors of Massive Star Formation and Black Hole Activity

Pablo G. Pérez-González, Guillermo Barro, Stefano Carniani +61

We compile JWST/NIRSpec prism and MIRI data for 249 Little Red Dots (LRDs) at 2.3<z<9.3, forming a representative spectroscopic subset of NIRCam-selected LRDs. We derive a median s…

astro-ph.GA2026★ 1 cited

The JWST EXCELS survey: The ages and abundances of massive quiescent galaxies show that downsizing was already in place by

Ho-Hin Leung, Adam C. Carnall, Elizabeth Taylor +21

We present deep, medium-resolution m JWST/NIRSpec spectroscopy for 14 quiescent galaxies at with , obtained as part of t…

astro-ph.GA2026★ 2 cited

Spectroscopic confirmation of a large and luminous galaxy with weak emission lines at

Callum T. Donnan, Derek J. McLeod, Ross J. McLure +15

We present JWST/NIRSpec PRISM observations of a robust galaxy candidate at , selected from pure-parallel NIRCam imaging; PAN-z14-1. The NIRSpec spectrum allows confirmat…

astro-ph.GA2026

The JWST EXCELS survey: Outflows in 1.5 < z < 5 quiescent and recently quenched galaxies are likely relics from episodic AGN activity

Elizabeth Taylor, Adam C. Carnall, David Maltby +24

We investigate the presence and origin of neutral gas outflows and inflows in 13 post-starburst (PSB) and quiescent galaxies at redshifts 1.8 z 4.6, using JWST NIRSpe…

astro-ph.GA2026

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…

astro-ph.GA2025

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…

astro-ph.GA2025★ 6 cited

The JWST EXCELS Survey: gas-phase metallicity evolution at 2 < z < 8

T. M. Stanton, F. Cullen, A. C. Carnall +15

We present an analysis of the gas-phase mass-metallicity relationship (MZR) and fundamental metallicity relationship (FMR) for star-forming galaxies at from the JW…

astro-ph.GA2025

The AURORA Survey: Ionizing Photon Production Efficiency with Minimal Nebular Dust Attenuation Systematics

Anthony J. Pahl, Alice Shapley, Naveen A. Reddy +11

We present ionizing photon production efficiencies () for 63 z=1.5-6.9 star-forming galaxies using precise nebular dust attenuation corrections from the JWST/AURORA su…

astro-ph.GA2025★ 3 cited

The JWST Emission Line Survey (JELS): The sizes and merger fraction of star-forming galaxies during the Epoch of Reionization

H. M. O. Stephenson, J. P. Stott, C. A. Pirie +18

We used observations from the JWST Emission Line Survey (JELS) to measure the half-light radii () of 23 H-emitting star-forming (SF) galaxies at in the PRIMER/COS…

astro-ph.GA2025★ 4 cited

The JWST EXCELS Survey: A spectroscopic investigation of the ionizing properties of star-forming galaxies at 1<z<8

R. Begley, R. J. McLure, F. Cullen +11

Charting the Epoch of Reionization demands robust assessments of what drives the production of ionizing photons in high-redshift star-forming galaxies (SFGs), and requires better p…

astro-ph.GA2025★ 2 cited

The JWST EXCELS survey: Insights into the nature of quenching at cosmic noon

Maya Skarbinski, Kate Rowlands, Katherine Alatalo +19

We study 24 massive quiescent galaxies with at with JWST/NIRSpec medium-resolution observations from the Early eXtragalactic C…

astro-ph.GA2025★ 1 cited

Evolution of the infrared luminosity function and its corresponding dust-obscured star formation rate density out to z~6

M. P. Koprowski, J. V. Wijesekera, J. S. Dunlop +5

We present a new determination of the evolving far-infrared galaxy luminosity function (FIR LF) and the resulting inferred evolution of dust-obscured star-formation rate density (S…

astro-ph.GA2025★ 11 cited

PRIMER & JADES reveal an abundance of massive quiescent galaxies at 2 < z < 5

Struan D. Stevenson, Adam C. Carnall, Ho-Hin Leung +22

We select a mass-complete sample of 225 quiescent galaxies at with from PRIMER and JADES photometry spanning a total area of sq.…

astro-ph.GA2025★ 5 cited

Ly visibility from z = 4.5 to 11 in the UDS field: Evidence for a high neutral hydrogen fraction and small ionized bubbles at z 7

L. Napolitano, L. Pentericci, M. Dickinson +28

The resonant scattering nature of Ly photons interacting with neutral hydrogen makes Ly emitters (LAEs) robust tracers of the intergalactic neutral hydrogen fraction, and thu…

astro-ph.GA2025★ 4 cited

The AURORA Survey: High-Redshift Empirical Metallicity Calibrations from Electron Temperature Measurements at z=2-10

Ryan L. Sanders, Alice E. Shapley, Michael W. Topping +29

We present detections of auroral emission lines of [OIII], [OII], [SIII], and [SII] in deep JWST/NIRSpec spectroscopy for 41 star-forming galaxies at from the AURORA su…

astro-ph.GA2025★ 1 cited

The AURORA Survey: Robust Helium Abundances at High Redshift Reveal A Subpopulation of Helium-Enhanced Galaxies in the Early Universe

Danielle A. Berg, Ryan L. Sanders, Alice E. Shapley +16

We present the first robust helium (He) abundance measurements in star-forming galaxies at redshifts using deep, moderate-resolution JWST/NIRSpec spectr…

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…