activity
20082026
most citedBlack holes, gravitational waves and fundamental physics: a roadmap

742 citations · 4.1k across the 75 of their papers we have counts for

collaborators
Showing 2025Show all

9 papers · 1 filter

astro-ph.CO2025★ 1 cited

Black hole merger rates for LISA and LGWA from semi-analytical modelling of light seeds

Jasbir Singh, Paola Severgnini, Vieri Cammelli +10

With the upcoming space- and Moon-based gravitational-wave detectors, LISA and LGWA respectively, a new era of GW astronomy will begin with the possibility of detections of the mer…

astro-ph.GA2025

A deep X-ray look to the most obscured quasar at z~3.6 and its environment

I. Villani, L. Zappacosta, E. Piconcelli +17

The most luminous and obscured quasars (QSOs) detected in infrared all-sky surveys could represent a key co-evolutionary phase from nuclear to circum-galactic (CG) scales in the fo…

astro-ph.GA2025

BlackTHUNDER: Evidence of three massive black holes in a z~5 galaxy

Hannah Übler, Giovanni Mazzolari, Roberto Maiolino +41

We present observational evidence of three massive, accreting black holes (BHs) in the z=5.0167 galaxy J0148-4214 from JWST/NIRSpec-IFU spectroscopy. The BHs are revealed through b…

astro-ph.GA2025★ 17 cited

A direct black hole mass measurement in a Little Red Dot at the Epoch of Reionization

Ignas Juodžbalis, Cosimo Marconcini, Francesco D'Eugenio +37

Recent discoveries of faint active galactic nuclei (AGN) at the redshift frontier have revealed a plethora of broad \Halpha emitters with optically red continua, named Little Red D…

astro-ph.GA2025★ 2 cited

Super-Eddington accretion in protogalactic cores

Tommaso Zana, Pedro R. Capelo, Mairo Boresta +6

The presence of massive black holes (BHs) exceeding already at redshift challenges standard models of BH growth. Super-Eddington (SE) accretion has…

astro-ph.CO2025★ 5 cited

Dating N loud AGNs at high redshift: GS3073 as a snapshot of wCen like evolution of a nuclear star cluster

F. D'Antona, P. Ventura, A. F. Marino +8

In this paper we address two major questions raised by recent James Webb Space Telescope observations of the young Universe, namely: 1) what are the seed initial masses, and how ra…