activity
20222026
most citedPANORAMIC: Discovery of an Ultra-Massive Grand-Design Spiral Galaxy at

16 citations · 70 across the 17 of their papers we have counts for

collaborators

18 papers

astro-ph.GA2026

Toward Unbreaking the Universe: MINERVA Measurements of Color Gradients in Massive Quiescent Galaxies Can Help Ease Too-Early Star Formation Tensions

Sam E. Cutler, Luke Robbins, Danilo Marchesini +41

The discovery of a population of massive, ancient quiescent galaxies within the first 2 Gyr of the Universe's history has led to significant tensions with models of galaxy formatio…

astro-ph.GA2026

COOL-LAMPS IX: A Rare Duo of Quasars Each Lensed by a Single Massive Galaxy Cluster

Erik Solhaug, Michael D. Gladders, Andi M. Kisare +20

Wide-separation lensed quasars (WSLQs) are rare systems that arise from the chance alignment of two objects: a galaxy cluster and a background quasar. After two decades, only seven…

astro-ph.GA2026

Winding Back the Clock: Recent Star Formation Histories of Massive Quiescent Galaxies Are Consistent With Their Rapid Number Density Evolution Since

Yunchong Zhang, Zhiyuan Ji, Rachel Bezanson +17

Massive quiescent galaxies have been identified out to in early JWST data in a substantial excess ( at ) of number densities from most theoretical…

astro-ph.GA2026

A PANORAMIC of UV-optical morphologies of "Little Red Dots": Two groups of LRDs distinguished by UV half-light radius

Aidan P. Cloonan, Katherine E. Whitaker, Sinclaire M. Manning +13

Among the most remarkable results from JWST is the discovery of abundant, compact, and very red sources in the early Universe known as "Little Red Dots" (LRDs). The relative degree…

astro-ph.GA2026

A Black Hole Star at Cosmic Noon: Extreme Balmer break, photospheric continuum, and broad absorption by thick winds in a Little Red Dot at z=1.7

Alberto Torralba, Jorryt Matthee, Andrea Weibel +12

Recent studies at high redshift have revealed an enigmatic class of Little Red Dots (LRDs) with extreme Balmer breaks, stronger than in any stellar atmosphere. However, it is uncle…

astro-ph.GA2025

Exploring Cosmic Dawn with PANORAMIC II: Cosmic Variance and Galaxy Clustering at

Andrea Weibel, Christian Kragh Jespersen, Pascal A. Oesch +10

Observational campaigns with JWST have revealed a higher-than-expected abundance of UV-bright galaxies at , with various proposed theoretical explanations. A powerful c…

astro-ph.GA2025

JWST Catches a Strongly Gravitationally Lensed AGN In Transition from Type II to Type I

Michael K Florian, Michael D Gladders, Gourav Khullar +10

JWST has enabled the discovery of a statistical sample of obscured (type II) active galactic nuclei (AGN) at cosmic noon. Studies comparing those type II AGN with type I AGN at tha…

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★ 10 cited

Exploring Cosmic Dawn with PANORAMIC I: The Bright End of the UVLF at

Andrea Weibel, Pascal A. Oesch, Christina C. Williams +14

In its first two years of operation, the James Webb Space Telescope has enabled the discovery of a surprising number of UV-bright galaxies at . Their number density is…

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

Hidden in Pixels. I. Discovery of dual "little red dots" indicates excess clustering on kilo-parsec scales

Takumi S. Tanaka, John D. Silverman, Kazuhiro Shimasaku +56

``Little Red Dots'' (LRDs) are an abundant high-redshift population newly discovered by the James Webb Space Telescope (JWST) and considered to be an early growth phase of supermas…

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★ 1 cited

The PANORAMIC Survey: Pure Parallel Wide Area Legacy Imaging with JWST/NIRCam

Christina C. Williams, Pascal A. Oesch, Andrea Weibel +15

We present the PANORAMIC survey, a pure parallel extragalactic imaging program with NIRCam observed during JWST Cycle 1. The survey obtained 530 sq arcmin of NIRCam imaging f…

astro-ph.HE2024★ 11 cited

The case for super-Eddington accretion in JWST broad-line AGN during the first billion years

Erini Lambrides, Rebecca Larson, Kristen Garofali +23

A multitude of JWST studies reveal a surprising over-abundance of over-massive accreting super-massive black holes (SMBHs) -- leading to a deepening tension between theory and obse…

astro-ph.GA2024

COOL-LAMPS VIII: Known wide-separation lensed quasars and their host galaxies reveal a lack of evolution in since

Aidan P. Cloonan, Gourav Khullar, Kate A. Napier +36

Wide-separation lensed quasars (WSLQs) are a rare class of strongly lensed quasars, magnified by foreground massive galaxy clusters, with typically large magnifications of the mult…

astro-ph.GA2024★ 2 cited

COOL-LAMPS. VII. Quantifying Strong-lens Scaling Relations with 177 Cluster-scale Strong Gravitational Lenses in DECaLS

Simon D. Mork, Michael D. Gladders, Gourav Khullar +27

We estimate the Einstein-radius-enclosed total mass for 177 cluster-scale strong gravitational lenses identified by the ChicagO Optically selected Lenses Located At the Margins of…

astro-ph.GA2023★ 1 cited

COOL-LAMPS. V. Discovery of COOL J03351927, a Gravitationally Lensed Quasar at =3.27 with an Image Separation of 23.3"

Kate Napier, Mike Gladders, Keren Sharon +18

We report the discovery of COOL J03351927, a quasar at z = 3.27 lensed into three images with a maximum separation of 23.3" by a galaxy cluster at z = 0.4178. To date this is th…

astro-ph.GA2022★ 16 cited

COOL-LAMPS III: Discovery of a 25".9 Separation Quasar Lensed by a Merging Galaxy Cluster

Michael N. Martinez, Kate A. Napier, Aidan P. Cloonan +16

In the third paper from the COOL-LAMPS Collaboration, we report the discovery of COOL J0542-2125, a gravitationally lensed quasar at , observed as three images due to an in…