3 papers
astro-ph.HE2025
Reading signatures of supermassive binary black holes in pulsar timing array observations
Boris Goncharov, Shubhit Sardana, A. Sesana +10
We find the inferred properties of the putative gravitational wave background in the second data release of the European Pulsar Timing Array to be in better agreement with theoreti…
astro-ph.HE2025
Detecting Intermediate-mass Black Holes Using Miniature Pulsar Timing Arrays in Globular Clusters
Xian Chen, Verónica Vázquez-Aceves, Siyuan Chen +3
Theoretical models predict that intermediate-mass black holes (IMBHs) exist in globular clusters (GCs), but observational evidence remains elusive. Millisecond pulsars (MSPs), whic…
astro-ph.HE2025
Quasars can Signpost Supermassive Black Hole Binaries
J. Andrew Casey-Clyde, Chiara M. F. Mingarelli, Jenny E. Greene +3
Supermassive black holes (SMBHs) are found in the centers of massive galaxies, and galaxy mergers should eventually lead to SMBH mergers. Quasar activity has long been associated w…