activity
20102026
most citedC in Reflection Nebulae

339 citations · 1.2k across the 56 of their papers we have counts for

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40 papers · 1 filter

astro-ph.GA2026

The Roman eXtreme Deep Field (RXDF)

Haojing Yan, Anton M. Koekemoer, Yue Shen +127

The Roman eXtreme Deep Field (RXDF) program is one of the five General Astrophysics Survey (GAS) programs approved for observing time with the Nancy Grace Roman Space Telescope in…

astro-ph.GA2026

The Koi Pond: A Strongly Lensed Protocluster Core hosting a Diverse Population of DSFGs

Nicholas Foo, Kevin C. Harrington, Brenda L. Frye +29

We present James Webb Space Telescope (JWST) and Atacama Large Millimeter Array (ALMA) observations of PJ0846+15, \textit{The Koi Pond}, a strongly lensed protocluster core at Cosm…

astro-ph.GA2026

Spectral Energy Distributions of Globular Clusters in VV191a

Ashton Cardona, Timothy Carleton, Jessica Berkheimer +9

We investigate globular cluster (GC) candidates associated with the elliptical galaxy VV191a using JWST NIRCam and archival HST imaging. Beginning with an initial catalog of over 5…

astro-ph.GA2026

PEARLS: NuSTAR and XMM-Newton Extragalactic Survey of the JWST North Ecliptic Pole Time Domain Field VI: Multiwavelength SED Analysis

Rafael Ortiz, Francesca Civano, Rogier A. Windhorst +27

We model spectral energy distributions of 261 X-ray sources to in the North Ecliptic Pole Time Domain Field, extending prior XMM-Newton and NuSTAR analyses. Using the st…

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

Comparative Bayesian SED Fitting of PEARLSDG

Barış Bayraktar, Timothy Carleton, Rogier A. Windhorst +2

The initial distance to PEARLSDG estimated from the Tip of the Red Giant Branch suggested it was an exotic isolated quiescent dwarf galaxy. We combine recent and archival Hectospec…

astro-ph.GA2025

Connection Between Dwarf Galaxies and Globular Clusters: Insights from the Perseus Cluster Using Subaru Imaging and Keck Spectroscopy

Yimeng Tang, Aaron J. Romanowsky, Song Huang +11

We present a systematic study of 189 dwarf galaxies and their globular cluster (GC) systems in the Perseus cluster, based on deep Subaru Hyper Suprime-Cam imaging and Keck spectros…

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.GA2025

Forecasting the Observable Rates of Gravitationally Lensed Supernovae for the PASSAGES Dusty Starbursts

Patrick S. Kamieneski, Rogier A. Windhorst, Brenda L. Frye +19

More than 60 years have passed since the first formal suggestion to use strongly-lensed supernovae to measure the expansion rate of the Universe through time-delay cosmography. Yet…

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★ 3 cited

A long time ago in an LAE far, far away: a signpost of early reionization or a nascent AGN at ?

Joshua Cohon, Christopher Cain, Rogier Windhorst +3

The JADES survey recently reported the discovery of JADES-GS-z13-1-LA at , the highest redshift Ly emitter (LAE) ever observed. This observation suggests that either the…

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

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…

astro-ph.GA2024

UVCANDELS: Catalogs of photometric redshifts and galaxy physical properties

Vihang Mehta, Marc Rafelski, Ben Sunnquist +76

The UltraViolet imaging of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey Fields (UVCANDELS) program provides deep HST F275W and F435W imaging over four CANDELS…

astro-ph.GA2024

We Must Preserve Hubble given its Unique Complementarity to Webb, Roman, and Euclid

Rogier A. Windhorst, Gibson B. Bowling, Kevin S. Croker +17

We present compelling arguments -- focusing on galaxy science -- for preserving the main imagers and operational modes of the Hubble Space Telescope (HST) for as long as is technic…

astro-ph.GA2024

Extreme Metallicity Dwarf Galaxies in IllustrisTNG

Timothy Carleton, Jacqueline Monkiewicz

The use of extremely metal-deficient dwarf galaxies (XMDs) as nearby analogs for high-redshift protogalaxies is generating renewed interest due to recent JWST observations studying…

astro-ph.GA2024

Birds of a Feather: Resolving Stellar Mass Assembly With JWST/NIRCam in a Pair of Kindred Dusty Star-forming Galaxies Lensed by the PLCK G165.7+67.0 Cluster

Patrick S. Kamieneski, Brenda L. Frye, Rogier A. Windhorst +38

We present a new parametric lens model for the G165.7+67.0 galaxy cluster, which was discovered with through its bright submillimeter flux, originating from a pair of extr…

astro-ph.GA2024★ 2 cited

PEARLS: Discovery of Point-Source Features Within Galaxies in the North Ecliptic Pole Time Domain Field

Rafael Ortiz, Rogier A. Windhorst, Seth H. Cohen +36

The first public 0.9-4.4μm NIRCam images of the North Ecliptic Pole (NEP) Time Domain Field (TDF) uncovered galaxies displaying point-source features in their cores as seen in the…

astro-ph.GA2024

TREASUREHUNT: Transients and Variability Discovered with HST in the JWST North Ecliptic Pole Time Domain Field

Rosalia O'Brien, Rolf A. Jansen, Norman A. Grogin +56

The JWST North Ecliptic Pole (NEP) Time Domain Field (TDF) is a 14 arcmin diameter field optimized for multi-wavelength time-domain science with JWST. It has been observed acros…

astro-ph.GA2023★ 15 cited

The UV luminosity function at 0.6 < z < 1 from UVCANDELS

Lei Sun, Xin Wang, Harry I. Teplitz +75

UVCANDELS is a HST Cycle-26 Treasury Program awarded 164 orbits of primary ultraviolet (UV) F275W imaging and coordinated parallel optical F435W imaging in four CANDELS fields: GOO…

astro-ph.GA2023

Dwarf galaxies show little ISM evolution from to : a spectroscopic study of metallicity, star formation, and electron density

John Pharo, Yicheng Guo, Guillermo Barro Calvo +6

We present gas-phase metallicity measurements for 583 emission line galaxies at , including 388 dwarf galaxies with , and explore the de…

astro-ph.GA2023

JWST NIRCam Photometry: A Study of Globular Clusters Surrounding Bright Elliptical Galaxy VV 191a at z=0.0513

Jessica M. Berkheimer, Timothy Carleton, Rogier A. Windhorst +22

James Webb Space Telescope NIRCam images have revealed 154 reliable globular cluster (GC) candidates around the elliptical galaxy VV~191a after subtracting 34 likely i…

astro-ph.GA2023

PEARLS: A Potentially Isolated Quiescent Dwarf Galaxy with a TRGB Distance of 30 Mpc

Timothy Carleton, Timothy Ellsworth-Bowers, Rogier A. Windhorst +25

A wealth of observations have long suggested that the vast majority of isolated classical dwarf galaxies (- M) are currently star-forming. However, recent o…