3 papers
astro-ph.GA2026
Converging on the eccentricity of massive black hole binaries in galactic mergers
Alessia Gualandris, Justin Read, Federica Fastidio +4
Binaries of supermassive black holes (MBHBs) represent the primary sources of the gravitational wave background (GWB) detectable by Pulsar Timing Arrays (PTAs). The eccentricity wi…
astro-ph.GA2025
Black hole dragging: a new mechanism for forming nuclear star clusters in giant elliptical galaxies
Nader Khonji, Alessia Gualandris, Justin I. Read +1
It has long been thought that nuclear star clusters (NSCs) cannot co-exist with the most massive supermassive black holes (SMBHs), since SMBH mergers - unavoidable for the most mas…
astro-ph.GA2025
Realistic consecutive galaxy mergers form eccentric PTA sources
Federica Fastidio, Elisa Bortolas, Alessia Gualandris +3
Results from pulsar timing arrays (PTAs) show evidence of a gravitational wave background (GWB) consistent with a population of unresolved supermassive black hole binaries (BHBs).…