activity
20222026
most citedA Long Time Ago in a Galaxy Far, Far Away: A Candidate z ~ 12 Galaxy in Early JWST CEERS Imaging

350 citations · 526 across the 12 of their papers we have counts for

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Showing 2025Show all

5 papers · 1 filter

astro-ph.GA2025★ 1 cited

MEGA: Spectrophotometric SED Fitting of Little Red Dots Detected in JWST MIRI

Kaila Ronayne, Casey Papovich, Allison Kirkpatrick +13

We analyze eight spectroscopically confirmed Little Red Dots (LRDs) at redshifts with JWST/NIRCam, NIRSpec, and MIRI data. The LRDs have red NIRCam colors, F150W-F444…

astro-ph.GA2025★ 1 cited

The HST-Hyperion Survey: Environmental Imprints on the Stellar-Mass Function at z~2.5

Derek Sikorski, Ben Forrest, Brian C. Lemaux +19

Not all galaxies at Cosmic Noon evolve in the same way. It remains unclear how the local environment -- especially the extreme overdensities of protoclusters -- affects stellar mas…

astro-ph.GA2025

AGNBoost: A Machine Learning Approach to AGN Identification with JWST/NIRCam+MIRI Colors and Photometry

Kurt Hamblin, Allison Kirkpatrick, Bren E. Backhaus +18

We present AGNBoost, a machine learning framework utilizing XGBoostLSS to identify AGN and estimate redshifts from JWST NIRCam and MIRI photometry. AGNBoost constructs 66 input fea…

astro-ph.GA2025

MEGA Mass Assembly with JWST: The MIRI EGS Galaxy and AGN Survey

Bren E. Backhaus, Allison Kirkpatrick, Guang Yang +8

We present the MIRI EGS Galaxy and AGN (MEGA) survey, a four band MIRI survey with 25 pointing in the Extended Groth Strip (EGS) extragalactic field. Three of the pointings utilize…

astro-ph.GA2025

The HST-Hyperion Survey: Grism Observations of a Proto-Supercluster

Ben Forrest, Lu Shen, Brian C. Lemaux +19

We present first results and catalogs from the HST-Hyperion survey. This survey has collected 50 orbits of WFC3/F160W imaging and WFC3/G141 grism spectroscopy in the most overdense…