20–22 Sept 2023
GSSI
Europe/Rome timezone

Detecting disk-induced environmental effects

21 Sept 2023, 09:30
30m
GSSI

GSSI

Viale Francesco Crispi, 7 67100 L'Aquila AQ

Speaker

Laura Sberna (AEI)

Description

Gravitational-wave observations of extreme mass ratio inspirals (EMRIs) hold incredible potential to probe gravity, astrophysical and exotic environments. One of the main effects of astrophysical environments is the torque exerted by gas disks of active galactic nuclei, which force the EMRI to “migrate” (mostly) inward like a planet. We present a Bayesian model-independent framework to detect and characterise these effects with LISA. We will also explore a new, potentially detectable interaction between magnetised stars and the disk.

Presentation materials