Ponente
Ville Vaskonen
Descripción
Inspiralling supermassive black hole (SMBH) binaries provide a natural explanation for the gravitational wave (GW) background observed in pulsar timing array (PTA) data. In this talk, I present a semi-analytical estimate of the GW background from SMBH binaries and discuss how the SMBH-based fit to the PTA data reveals evidence of environmental effects or binary eccentricities. I also explore potential observational signatures that could help distinguish between these effects and confirm whether the signal indeed originates from SMBH binaries.
