activity
20222026
most citedDiscovery and properties of ultra-high redshift galaxies () in the JWST ERO SMACS 0723 Field

274 citations · 1.1k across the 40 of their papers we have counts for

collaborators
Showing 2025Show all

10 papers · 1 filter

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.HE2025

Probing the origin of the kilonova candidate GRB 230307A: analysis of host galaxy and offset

Clecio R. Bom, Davi C. Rodrigues, Arianna Cortesi +12

We investigate the host galaxy of the long gamma-ray burst GRB 230307A, which is associated with a kilonova candidate likely produced by a binary neutron-star (BNS) merger. The tra…

astro-ph.GA2025★ 1 cited

Flexible Simulation Based Inference for Galaxy Photometric Fitting with Synthesizer

Thomas Harvey, Christopher C. Lovell, Sophie Newman +13

We introduce Synference, a new, flexible Python framework for galaxy SED fitting using simulation-based inference (SBI). Synference leverages the Synthesizer package for flexible f…

astro-ph.GA2025★ 3 cited

Cloudy with a chance of starshine: Possible photometric signatures of nebular-dominated emission in JADES galaxies

James A. A. Trussler, Alex J. Cameron, Daniel J. Eisenstein +21

The discovery of high-redshift galaxies exhibiting a steep spectral UV downturn potentially indicative of two-photon continuum emission marks a turning point in our search for sign…

astro-ph.GA2025

A dual AGN at z = 5.4 associated with a Lyman-alpha Nebula in the Center of a Cosmic Filament

Qiong Li, Christopher J. Conselice, Qiao Duan +9

Predictions from current theories and simulations suggest that dual AGN systems are exceedingly rare at high redshifts. The intense radiation and powerful outflows from AGNs regula…

astro-ph.GA2025★ 2 cited

Reionization in Protocluster Environments at with JWST/NIRSpec

Qiong Li, Christopher J. Conselice, Duncan Austin +4

Understanding the role of high-redshift protoclusters in cosmic reionization is essential to unveiling the early stages of structure formation. Using deep imaging and spectroscopy…

astro-ph.GA2025★ 15 cited

Lonely Little Red Dots: Challenges to the AGN-nature of little red dots through their clustering and spectral energy distributions

María Carranza-Escudero, Christopher J. Conselice, Nathan Adams +31

Observations with the James Webb Space Telescope (JWST) reveal a previously unseen population of compact red objects, known as ``little red dots`` (LRDs). We study a new photometri…

astro-ph.GA2025★ 10 cited

Behind the Spotlight: A systematic assessment of outshining using NIRCam medium-bands in the JADES Origins Field

Thomas Harvey, Christopher J. Conselice, Nathan J. Adams +9

The spatial resolution and sensitivity of JWST's NIRCam instrument has revolutionised our ability to probe the internal structure of early galaxies. By leveraging deep medium-band…

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.GA2025★ 6 cited

New Methods of Identifying AGN in the Early Universe using Spectroscopy and Photometry in the JWST Era

Flor Arevalo Gonzalez, Titanilla Braun, James Trussler +7

We explore spectroscopic and photometric methods for identifying high-redshift galaxies containing an Active Galactic Nucleus (AGN) with JWST observations. After demonstrating the…