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Showing 1–9 of 9 results

Advanced filters: Author: Casey Papovich Clear advanced filters

Extended enriched gas in a multi-galaxy merger at redshift 6.7

JWST data reveal a multi-galaxy merger 800 Myr after the Big Bang, likely a progenitor of massive quiescent galaxies seen at later times. Its extended [O iii] halo offers direct evidence of early metal enrichment via tidal stripping.

Weida Hu
Casey Papovich
Justin Cole
Research15 Aug 2025
Nature Astronomy

Volume: 9, P: 1568-1578
A luminous and young galaxy at z = 12.33 revealed by a JWST/MIRI detection of Hα and [O iii]

The detection of Hα reported in galaxy candidate GHZ2/GLASS-z12 provides a direct probe of star formation activity and can be used to trace massive stars with ages of ~10 Myr or younger.

Jorge A. Zavala
Marco Castellano
L. Y. Aaron Yung
ResearchOpen Access30 Oct 2024
Nature Astronomy

Volume: 9, P: 155-164
Confirmation and refutation of very luminous galaxies in the early Universe

JWST spectroscopy confirms redshifts for two very luminous galaxies with z > 11, and also demonstrates that another candidate with suggested z ≈ 16 instead has z = 4.9.

Pablo Arrabal Haro
Mark Dickinson
Jorge A. Zavala
Research14 Aug 2023
Nature

Volume: 622, P: 707-711
A massive galaxy that formed its stars at z ≈ 11

A massive galaxy observed with the JWST indicates that the bulk of its stars formed within the first 500 million years of the Universe.

Karl Glazebrook
Themiya Nanayakkara
Angel Chandro-Gomez
Research14 Feb 2024
Nature

Volume: 628, P: 277-281
Most of the photons that reionized the Universe came from dwarf galaxies

An analysis of eight ultra-faint galaxies during the epoch of reionization with absolute magnitudes between −17 mag and −15 mag shows that most of the photons that reionized the Universe come from dwarf galaxies.

Hakim Atek
Ivo Labbé
Katherine E. Whitaker
Research28 Feb 2024
Nature

Volume: 626, P: 975-978
Strong spectral features from asymptotic giant branch stars in distant quiescent galaxies

Strong near-infrared spectral features from asymptotic giant branch stars are detected by JWST in the integrated light from distant quiescent galaxies, clarifying their contribution to galaxy spectra and population synthesis models.

Shiying Lu
Emanuele Daddi
L. Y. Aaron Yung
Research22 Oct 2024
Nature Astronomy

Volume: 9, P: 128-140
A Milky Way-like barred spiral galaxy at a redshift of 3

We report observations of ceers-2112 that show that this galaxy, at a redshift of 3, unexpectedly has a barred spiral structure.

Luca Costantin
Pablo G. Pérez-González
L. Y. Aaron Yung
ResearchOpen Access08 Nov 2023
Nature

Volume: 623, P: 499-501
A massive, quiescent galaxy at a redshift of 3.717

A massive ancient galaxy with minimal star formation is observed spectroscopically at an epoch when the Universe is less than 2 billion years old, posing a challenge to theories.

Karl Glazebrook
Corentin Schreiber
Tiantian Yuan
Research06 Apr 2017
Nature

Volume: 544, P: 71-74
A population of faint, old, and massive quiescent galaxies at \(3 revealed by JWST NIRSpec Spectroscopy

Themiya Nanayakkara
Karl Glazebrook
Kim-Vy H. Tran
ResearchOpen Access14 Feb 2024
Scientific Reports

Volume: 14, P: 1-14