JADES-The diverse population of infant black holes at 4< z< 11: Merging, tiny, poor, but mighty

R Maiolino, J Scholtz, E Curtis-Lake, S Carniani… - Astronomy & …, 2024 - aanda.org
Spectroscopy with the James Webb Space Telescope has opened the possibility of
identifying moderate-luminosity active galactic nuclei (AGNs) in the early Universe, at and …

Accelerated formation of ultra-massive galaxies in the first billion years

M **ao, PA Oesch, D Elbaz, L Bing, EJ Nelson… - Nature, 2024 - nature.com
Abstract Recent James Webb Space Telescope (JWST) observations have revealed an
unexpected abundance of massive-galaxy candidates in the early Universe, extending …

Rest-frame UV Colors for Faint Galaxies at z∼ 9–16 with the JWST NGDEEP Survey

AM Morales, SL Finkelstein, GCK Leung… - The Astrophysical …, 2024 - iopscience.iop.org
We present measurements of the rest-frame UV spectral slope, β, for a sample of 36 faint
star-forming galaxies at z∼ 9–16 discovered in one of the deepest JWST NIRCam surveys …

Silencing the Giant: Evidence of Active Galactic Nucleus Feedback and Quenching in a Little Red Dot at z= 4.13

V Kokorev, J Chisholm, R Endsley… - The Astrophysical …, 2024 - iopscience.iop.org
Abstract The James Webb Space Telescope (JWST) has uncovered a ubiquitous population
of dust-obscured compact sources at z≳ 4. Many of these objects exhibit signs of active …

The Small Sizes and High Implied Densities of “Little Red Dots” with Balmer Breaks Could Explain Their Broad Emission Lines without an Active Galactic Nucleus

JFW Baggen, P van Dokkum, G Brammer… - The Astrophysical …, 2024 - iopscience.iop.org
Early JWST studies found an apparent population of massive, compact galaxies at redshifts
z≳ 7. Recently three of these galaxies were shown to have prominent Balmer breaks …

Brown Dwarf Candidates in the JADES and CEERS Extragalactic Surveys

KN Hainline, JM Helton, BD Johnson… - The Astrophysical …, 2024 - iopscience.iop.org
Abstract By combining the James Webb Space Telescope (JWST)/NIRCam JADES and
CEERS extragalactic data sets, we have uncovered a sample of 21 T and Y brown dwarf …

Not-so-little Red Dots: Two Massive and Dusty Starbursts at z∼ 5–7 Pushing the Limits of Star Formation Discovered by JWST in the COSMOS-Web Survey

F Gentile, CM Casey, HB Akins, M Franco… - The Astrophysical …, 2024 - iopscience.iop.org
We present the properties of two candidate massive (M⋆∼ 10 11 M⊙) and dusty (A v> 2.5
mag) galaxies at z= 5–7 in the first 0.28 deg 2 of the COSMOS-Web survey. One object is …

ΛCDM not dead yet: massive high-z Balmer break galaxies are less common than previously reported

G Desprez, NS Martis, Y Asada… - Monthly Notices of …, 2024 - academic.oup.com
Early JWST observations that targeted so-called double-break sources (attributed to Lyman
and Balmer breaks at z> 7), reported a previously unknown population of very massive …

Deciphering the JWST spectrum of a 'little red dot'at z∼ 4.53: An obscured AGN and its star-forming host

M Killi, D Watson, G Brammer, C McPartland… - Astronomy & …, 2024 - aanda.org
JWST has revealed a class of numerous, extremely compact sources with rest-frame red
optical/near-infrared (NIR) and blue ultraviolet (UV) colours nicknamed 'little red dots'. We …

UNCOVER: candidate red active galactic nuclei at 3< z< 7 with JWST and ALMA

I Labbe, JE Greene, R Bezanson… - The Astrophysical …, 2024 - iopscience.iop.org
Abstract The James Webb Space Telescope (JWST) is revolutionizing our knowledge of z>
5 galaxies and their actively accreting black holes. Using the JWST Cycle 1 Treasury …