activity
20242026
collaborators

8 papers

astro-ph.GA2026

Deep Spectroscopic Follow-Up of Maisie's Galaxy -- A Typical Galaxy in the Early Universe

Rebecca L. Larson, Taylor A. Hutchison, Steven L. Finkelstein +26

The first several years of JWST observations have yielded surprisingly large numbers of bright galaxies, with follow-up spectroscopy of many of these sources implying extrem…

astro-ph.GA2026

A Morphology Catalog of Galaxies in CEERS: Evolution in the Size and Color Gradients of Galaxies Since Cosmic Dawn

Elizabeth J. McGrath, Steven L. Finkelstein, Guillermo Barro +42

We present measurements of morphological parameters from fitting 53,885 galaxies detected to a magnitude limit of F356W in the CEERS NIRCam imaging with galfit in six broad…

astro-ph.GA2025

Mysteries of Capotauro: investigating the puzzling nature of an extreme F356W-dropout

Giovanni Gandolfi, Giulia Rodighiero, Marco Castellano +38

JWST has uncovered a diverse population of extreme near-infrared dropouts, including ultra high-redshift () galaxy candidates, dust-obscured galaxies challenging dust product…

astro-ph.GA2025

The CEERS Photometric and Physical Parameter Catalog

Isa G. Cox, Jeyhan S. Kartaltepe, Micaela B. Bagley +35

We present the Cosmic Evolution Early Release Science Survey (CEERS) catalog, including space-based photometry, photometric redshifts, and physical parameters for more than 80,000…

astro-ph.GA2025

The rise of the galactic empire: luminosity functions at and estimated with the MIDISNGDEEP ultra-deep JWST/NIRCam dataset

Pablo G. Pérez-González, Göran Östlin, Luca Costantin +39

We present a sample of six F200W and three F277W dropout sources identified as galaxy candidates using the deepest JWST/NIRCam data to date (5 depths mag a…

astro-ph.CO2025

The Extinction Law in SN Ia Hosts from Background Galaxy Measurements: Toward a 1% Determination of

Yukei S. Murakami, Adam G. Riess, Henry C. Ferguson +4

In the most precise distance ladder determination of , the observed near-infrared (NIR) fluxes of Cepheids are corrected for dust, assuming that the extinction law in large, s…