activity
20242026
collaborators

11 papers

astro-ph.GA2026

The X-Ray Dot: Exotic Dust or a Late-Stage Little Red Dot?

Raphael E. Hviding, Anna de Graaff, Hanpu Liu +15

JWST's "Little Red Dots" (LRDs) are increasingly interpreted as active galactic nuclei (AGN) obscured by dense thermalized gas rather than dust as evidenced by their X-ray weakness…

astro-ph.GA2025

Detection of the 2175Ã UV Bump at z>7: Evidence for Rapid Dust Evolution in a Merging Reionisation-Era Galaxy

Katherine Ormerod, Joris Witstok, Renske Smit +15

Dust is a fundamental component of the interstellar medium within galaxies, as dust grains are highly efficient absorbers of ultraviolet (UV) and optical photons. Accurately quanti…

astro-ph.GA2025

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

Ages and metallicities of quiescent galaxies: confronting broadband () colours with stellar absorption lines

Chloe M. Cheng, Mariska Kriek, Aliza G. Beverage +9

For decades, studying quiescent galaxies beyond has been challenging due to the reliance on photometric spectral energy distributions, which are highly susceptible to dege…

astro-ph.GA2025

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, iden…

astro-ph.GA2025

Evolution of the Sérsic Index up to z=2.5 from JWST and HST

Marco Martorano, Arjen van der Wel, Maarten Baes +12

The James Webb Space Telescope (JWST) is unveiling the rest-frame near-IR structure of galaxies. We measure the evolution with redshift of the rest-frame optical and near-IR Sérsi…