[HTML][HTML] Observational evidence for primordial black holes: A positivist perspective

BJ Carr, S Clesse, J Garcia-Bellido, MRS Hawkins… - Physics Reports, 2024 - Elsevier
We review numerous arguments for primordial black holes (PBHs) based on observational
evidence from a variety of lensing, dynamical, accretion and gravitational-wave effects. This …

COSMOS-Web: an overview of the JWST Cosmic Origins Survey

CM Casey, JS Kartaltepe, NE Drakos… - The Astrophysical …, 2023 - iopscience.iop.org
We present the survey design, implementation, and outlook for COSMOS-Web, a 255 hr
treasury program conducted by the James Webb Space Telescope in its first cycle of …

A JWST/NIRSpec First Census of Broad-line AGNs at z= 4–7: Detection of 10 Faint AGNs with M BH∼ 106–108 M⊙ and Their Host Galaxy Properties

Y Harikane, Y Zhang, K Nakajima… - The Astrophysical …, 2023 - iopscience.iop.org
We present the first statistical sample of faint type 1 AGNs at z> 4 identified by
JWST/NIRSpec deep spectroscopy. Among the 185 galaxies at z spec= 3.8–8.9 confirmed …

CEERS spectroscopic confirmation of NIRCam-selected z≳ 8 galaxy candidates with JWST/NIRSpec: initial characterization of their properties

S Fujimoto, PA Haro, M Dickinson… - The Astrophysical …, 2023 - iopscience.iop.org
We present JWST NIRSpec spectroscopy for 11 galaxy candidates with photometric
redshifts of z≃ 9− 13 and M UV∈[− 21,− 18] newly identified in NIRCam images in the …

A JWST/NIRCam study of key contributors to reionization: the star-forming and ionizing properties of UV-faint z ∼ 7−8 galaxies

R Endsley, DP Stark, L Whitler… - Monthly Notices of …, 2023 - academic.oup.com
ABSTRACT Spitzer/Infrared Array Camera (IRAC) imaging has revealed that the brightest
z∼ 7− 8 galaxies often exhibit young ages and strong nebular line emission, hinting at high …

JWST UNCOVER: extremely Red and Compact Object at z phot≃ 7.6 triply imaged by A2744

LJ Furtak, A Zitrin, A Plat, S Fujimoto… - The Astrophysical …, 2023 - iopscience.iop.org
Recent JWST/NIRCam imaging taken for the ultra-deep UNCOVER program reveals a very
red dropout object at z phot≃ 7.6, triply imaged by the galaxy cluster A2744 (zd= 0.308). All …

Quasars and the intergalactic medium at cosmic dawn

X Fan, E Bañados, RA Simcoe - Annual Review of Astronomy …, 2023 - annualreviews.org
Quasars at cosmic dawn provide powerful probes of the formation and growth of the earliest
supermassive black holes (SMBHs) in the Universe, their connections to galaxy and …

UNCOVER Spectroscopy Confirms the Surprising Ubiquity of Active Galactic Nuclei in Red Sources at z> 5

JE Greene, I Labbe, AD Goulding… - The Astrophysical …, 2024 - iopscience.iop.org
Abstract The James Webb Space Telescope is revealing a new population of dust-reddened
broad-line active galactic nuclei (AGN) at redshifts z≳ 5. Here we present deep …

Little Red Dots: An Abundant Population of Faint Active Galactic Nuclei at z∼ 5 Revealed by the EIGER and FRESCO JWST Surveys

J Matthee, RP Naidu, G Brammer… - The Astrophysical …, 2024 - iopscience.iop.org
Characterizing the prevalence and properties of faint active galactic nuclei (AGNs) in the
early Universe is key for understanding the formation of supermassive black holes (SMBHs) …

Two Massive, Compact, and Dust-obscured Candidate z≃ 8 Galaxies Discovered by JWST

HB Akins, CM Casey, N Allen, MB Bagley… - The Astrophysical …, 2023 - iopscience.iop.org
We present a search for extremely red, dust-obscured, z> 7 galaxies with JWST/NIRCam+
MIRI imaging over the first 20 arcmin 2 of publicly available Cycle 1 data from the COSMOS …