Edifici Nexus

Apr 15, 2024 | link.aps.org | Michele Machado Lenzi |Campus UAB |Edifici Nexus |Carlos F. Sopuerta

Perturbation theory of vacuum spherically-symmetric spacetimes (including the cosmological constant) has greatly contributed to the understanding of black holes, relativistic compact stars, and even inhomogeneous cosmological models. The perturbative equations can be decoupled in terms of (gauge-invariant) master functions satisfying 1+1 wave equations.