activity
20162026
most citedCLASH-VLT: Testing the Nature of Gravity with Galaxy Cluster Mass Profiles

37 citations · 77 across the 28 of their papers we have counts for

collaborators

28 papers

astro-ph.GA2026

A massive barred spiral galaxy at z = 5.102 discovered by JWST

Xiaohan Wang, Fengwu Sun, Yoshihisa Asada +21

We report M1149-BSG-z5, a barred spiral galaxy at , identified in the parallel field of MACS J1149+2223 with JWST and HST. M1149-BSG-z5 is the highest redshift barred ga…

astro-ph.GA2026

PEARLS: Two Distinct Populations of AGN Hosts Moving Between Star Formation and Quiescence

Gibson B. Bowling, Rafael Ortiz, S. P. Willner +29

We present the results of AGN--host-galaxy decomposition using JWST/NIRCam, HST/ACS, and HST/WFC3 imaging of the North Ecliptic Pole Time Domain Field (NEP-TDF). The light-profiles…

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.HE2026

A spectroscopically confirmed, strongly lensed, metal-poor Type II supernova at z = 5.13

David A. Coulter, Conor Larison, Justin D. R. Pierel +88

Observing supernovae (SNe) in the early Universe (z > 3) provides a window into how both galaxies and individual stars have evolved over cosmic time, yet a detailed study of high-r…

astro-ph.GA2025

Resolving the ionizing photon budget crisis with JWST/NIRCam HII clumping constraints at z=6

Duncan Austin, Thomas Harvey, Christopher J. Conselice +18

We present a comprehensive study of the ionizing properties of 1721 galaxies at using deep JWST/NIRCam photometric imaging from the NEP, JADES, and PRIMER surveys spann…

astro-ph.GA2025★ 1 cited

Little red dot variability over a century reveals black hole envelope via a giant Einstein cross

Zijian Zhang, Mingyu Li, Masamune Oguri +79

"Little red dots" (LRDs) represent a new population of astronomical objects uncovered by JWST whose nature remains debated. Although many LRDs are suspected as active galactic nucl…

astro-ph.HE2025

PEARLS: NuSTAR and XMM-Newton Extragalactic Survey of the JWST North Ecliptic Pole Time-domain Field III

Ross Silver, Francesca Civano, Xiurui Zhao +28

The James Webb Space Telescope (JWST) North Ecliptic Pole (NEP) Time-Domain Field (TDF) has been monitored by NuSTAR and XMM-Newton with a regular cadence for five years starting i…

astro-ph.GA2025

The Distribution of Quenched Galaxies in the Massive z = 0.87 Galaxy Cluster El Gordo

Rachel Honor, Seth Cohen, Timothy Carleton +27

El Gordo (ACT-CL J01024915) is a massive galaxy cluster with two major mass components at redshift . Using SED fitting results from JWST/NIRCam photometry, the fraction…

astro-ph.CO2025★ 1 cited

SKYSURF-11: A New Zodiacal Light Model Optimized for Optical Wavelengths

Rosalia O'Brien, Richard G. Arendt, Rogier A. Windhorst +15

We present an improved zodiacal light model, optimized for optical wavelengths, using archival Hubble Space Telescope (HST) imaging from the SKYSURF program. The Kelsall et al. 199…

astro-ph.GA2025

PEARLS: Globular Clusters and Ultra-Compact Dwarfs in the El Gordo Galaxies at z=0.87

William E. Harris, Marta Reina-Campos, Anton M. Koekemoer +11

JWST/NIRCam 0.9 to 2.0 micron images reveal a population of point sources around the major galaxies in the El Gordo cluster at redshift z=0.87. Their distribution in the color--mag…

astro-ph.GA2025

Globular Clusters in the Galaxy Cluster MACS0416 at z = 0.397

Jessica M. Berkheimer, Rogier A. Windhorst, William E. Harris +27

We present a photometric analysis of globular clusters (GCs) in the massive galaxy cluster MACS J0416.1-2403 (z = 0.397) using deep JWST/NIRCam imaging from the PEARLS program. PSF…

astro-ph.GA2025

Is Earendel a Star Cluster?: Metal Poor Globular Cluster Progenitors at

Massimo Pascale, Liang Dai, Brenda L. Frye +1

The strongly-lensed Sunrise galaxy offers an incredible opportunity to investigate star formation in the early universe on parsec or smaller scales. The highly magnified…

astro-ph.GA2025

Dissecting Reionisation with the Cosmic Star Formation and Active Galactic Nuclei Luminosity History

Jordan C. J. D'Silva, Simon P. Driver, Claudia D. P. Lagos +23

The combination of the cosmic star formation history and active galactic nuclei (AGN) luminosity history as inferred by the James Webb Space Telescope is connected to th…

astro-ph.GA2025

JWST's PEARLS: A Candidate Massive Binary Star System in a Lensed Galaxy at Redshift 0.94

Hayley Williams, Patrick L. Kelly, Emmanouil Zapartas +18

Massive stars at cosmological distances can be individually detected during transient microlensing events, when gravitational lensing magnifications may exceed ~1000. Nine such sou…

astro-ph.HE2025

Peering into the heart of darkness with VLBA : Radio Quiet AGN in the JWST North Ecliptic Pole Time-Domain Field

Payaswini Saikia, Ramon Wrzosek, Joseph Gelfand +27

We present initial results from the 4.8 GHz Very Long Baseline Array (VLBA) survey of the JWST North Ecliptic Pole Time-Domain Field (TDF). From 106 radio sources found in the Karl…

astro-ph.GA2025

Hiding behind a curtain of dust: Gas and dust properties of an ultra-luminous strongly-lensed z = 3.75 galaxy behind the Milky Way disk

Belén Alcalde Pampliega, Kevin C. Harrington, Aristeidis Amvrosiadis +21

We present a detailed analysis of J154506, a strongly lensed submillimeter galaxy behind the Lupus-I molecular cloud, and characterisation of its physical properties using a combin…

astro-ph.GA2025

PEARLS: 21 Transients Found in the Three-Epoch NIRCam Observations in the Continuous Viewing Zone of the James Webb Space Telescope

Haojing Yan, Bangzheng Sun, Zhiyuan Ma +39

We present 21 transients from our three-epoch, four-band NIRCam observations covering 14.16 arcmin^2 in the Spitzer IRAC Dark Field (IDF), taken by the JWST Prime Extragalactic Are…

astro-ph.GA2025★ 2 cited

Galaxy-scale lens search in the PEARLS NEP TDF and CEERS JWST fields

Giovanni Ferrami, Nathan J. Adams, Lewi Westcott +14

We present four galaxy scale lenses discovered in two JWST blank-fields: the ~ 54 arcmin^2 of the PEARLS North-Ecliptic-Pole Time-Domain Field (NEP TDF) and in the ~ 90 arcmin^2 of…

astro-ph.GA2025★ 3 cited

JWSTs PEARLS: NIRCam imaging and NIRISS spectroscopy of a star-forming galaxy lensed into a near-Einstein Ring by a massive elliptical galaxy

Nathan J. Adams, Giovanni Ferrami, Lewi Westcott +30

We present the discovery, and initial lensing analysis, of a high-redshift galaxy-galaxy lensing system within the JWST-PEARLS/HST-TREASUREHUNT North Ecliptic Pole Time Domain Fiel…

astro-ph.CO2025★ 8 cited

Cosmology with supernova Encore in the strong lensing cluster MACS J01382155: photometry, cluster members, and lens mass model

S. Ertl, S. H. Suyu, S. Schuldt +23

The strongly lensed Supernova (SN) Encore at a redshift of , discovered behind the galaxy cluster MACS J01382155 at , provides a rare opportunity for time-de…

astro-ph.GA2025★ 6 cited

Enhanced strong-lensing model of MACS~J0138.02155 based on new JWST and VLT/MUSE observations

Ana Acebron, Pietro Bergamini, Piero Rosati +10

We present a new parametric strong lensing analysis of the galaxy cluster MACS J0138.0-2155 at z = 0.336, the first known to show two multiply-imaged supernova (SN) siblings, SN Re…

astro-ph.GA2025★ 1 cited

Self-Consistent JWST Census of Star Formation and AGN activity at z=5.5-13.5

Jordan C. J. D'Silva, Simon P. Driver, Claudia D. P. Lagos +24

The cosmic star formation history (CSFH) and cosmic active galactic nuclei (AGN) luminosity history (CAGNH) are self consistently measured at . This is achieved by an…

astro-ph.GA2025

Explaining JWST counts with galaxy formation models

Giorgio Manzoni, Tom Broadhurst, Jeremy Lim +18

A distinct power-law break is apparent m_AB approximately 21 in the deep Near-Infrared PEARLS-JWST galaxy counts. The break becomes more pronounced at longer wavelengths, with the…

astro-ph.GA2025★ 4 cited

JWST's PEARLS: A z=6 quasar in a train-wreck galaxy merger system

Madeline A. Marshall, Rogier A. Windhorst, Giovanni Ferrami +35

We present JWST NIRSpec integral field spectroscopy observations of the z=5.89 quasar NDWFS J1425+3254 from 0.6-5.3 microns, covering the rest-frame ultraviolet and optical at a sp…