Conveners
Session XII
- Isabel Cordero Carrión (University of Valencia)
A deep correspondence exists between the quasi-normal modes (QNMs) of ultra-compact objects and their observable gravitational lensing features, such as photon rings and shadows. In the era of multi-messenger astrophysics, a comprehensive understanding of this relation is crucial for extracting fundamental spacetime properties. We present how we can use this correspondence to test beyond...
Blazars show variability across the entire electromagnetic spectrum and over a wide range of timescales. In some cases, characteristic emission patterns have been observed, such as the multi-year modulation detected in PG 1553+113. Quasi-periodic oscillations (QPOs) can arise from various astrophysical mechanisms, including jet precession, accretion disk instabilities, and supermassive binary...
Pulsar Timing Array (PTA) observations provide strong evidence for a stochastic gravitational wave background (SGWB), potentially originating from astrophysical sources or early universe phenomena. If the SGWB is cosmological, our relative motion with respect to the SGWB rest frame induces a kinematic anisotropy, which could dominate over intrinsic anisotropies, similar to the cosmic microwave...
