Where are the supermassive black holes measured by PTAs?
Gabriela Sato-Polito, Matías Zaldarriaga, Eliot Quataert
Abstract
The paper establishes a discrepancy in the inferred supermassive black hole mass density between gravitational-wave based estimates (from pulsar timing) and electromagnetic estimates (from galaxy scaling relations and the quasar luminosity function). Further, possible solutions are also discussed.
Topics & Concepts
Supermassive black holePhysicsAstrophysicsGalaxyBlack Holes and Theoretical PhysicsCosmology and Gravitation TheoriesPulsars and Gravitational Waves Research