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 …

MUSE adaptive-optics spectroscopy confirms dual active galactic nuclei and strongly lensed systems at sub-arcsec separation

M Scialpi, F Mannucci, C Marconcini, G Venturi… - Astronomy & …, 2024‏ - aanda.org
The novel Gaia multi peak (GMP) technique has proven to be able to successfully select
dual and lensed active galactic nuclei (AGN) candidates at sub-arcsecond separations. Both …

GA-NIFS: JWST discovers an offset AGN 740 million years after the big bang

H Übler, R Maiolino, PG Pérez-González… - Monthly Notices of …, 2024‏ - academic.oup.com
ABSTRACT A surprising finding of recent studies is the large number of Active Galactic
Nuclei (AGN) associated with moderately massive black holes (), in the first billion years …

Overmassive central black holes in the cosmological simulations astrid and Illustris TNG50

EJ Weller, F Pacucci, P Natarajan… - Monthly Notices of the …, 2023‏ - academic.oup.com
Recent dynamical measurements indicate the presence of a central supermassive black
hole (SMBH) with mass in the dwarf galaxy Leo I, placing the system∼ 50 times above the …

Varstrometry for Off-nucleus and Dual Subkiloparsec AGN (VODKA). SDSS J1608+ 2716: A Subarcsecond Quadruply Lensed Quasar at z= 2.575

J Li, X Liu, Y Shen, M Oguri, AC Gross… - The Astrophysical …, 2023‏ - iopscience.iop.org
Abstract We report Hubble Space Telescope (HST) Wide Field Camera 3 deep IR (F160W)
imaging of SDSS J1608+ 2716. This system, located at a redshift of z= 2.575, was recently …

The MAGPI Survey: the evolution and drivers of gas turbulence in intermediate-redshift galaxies

Y Mai, SM Croom, E Wisnioski… - Monthly Notices of …, 2024‏ - academic.oup.com
We measure the ionized gas velocity dispersions of star-forming galaxies in the MAGPI
survey () and compare them with galaxies in the SAMI () and KROSS () surveys to …

Dual Active Galactic Nuclei: Precursors of Binary Supermassive Black Hole Formation and Mergers

V Saeedzadeh, A Babul, S Mukherjee… - The Astrophysical …, 2024‏ - iopscience.iop.org
The presence of dual active galactic nuclei (AGNs) on scales of a few tens of kiloparsecs
can be used to study merger-induced accretion on supermassive black holes (SMBHs) and …

A surprisingly high number of dual active galactic nuclei in the early Universe

M Perna, S Arribas, I Lamperti, C Circosta… - arxiv preprint arxiv …, 2023‏ - arxiv.org
Merger events can trigger gas accretion onto supermassive black holes (SMBHs) sitting at
the centre of galaxies, and form close pairs of active galactic nuclei (AGN). The fraction of …

Triple and quadruple black holes in the ASTRID simulation at z ∼ 2

C Hoffman, N Chen, T Di Matteo, Y Ni… - Monthly Notices of …, 2023‏ - academic.oup.com
We use the ASTRID cosmological hydrodynamic simulation to investigate the properties and
evolution of triple and quadruple massive black hole (MBH) systems at z= 2–3. Only a …

Discovery and Characterization of Galactic-scale Dual Supermassive Black Holes Across Cosmic Time

Y Shen, JA Casey-Clyde, YC Chen, A Gross… - arxiv preprint arxiv …, 2023‏ - arxiv.org
The hierarchical structure formation paradigm predicts the formation of pairs of
supermassive black holes in merging galaxies. When both (or one) members of the SMBH …