# Gyroscopic gravitational memory from binary systems

### APA

Seraj, A. (2024). Gyroscopic gravitational memory from binary systems. Perimeter Institute. https://pirsa.org/24050071

### MLA

Seraj, Ali. Gyroscopic gravitational memory from binary systems. Perimeter Institute, May. 09, 2024, https://pirsa.org/24050071

### BibTex

@misc{ pirsa_PIRSA:24050071, doi = {10.48660/24050071}, url = {https://pirsa.org/24050071}, author = {Seraj, Ali}, keywords = {Quantum Gravity}, language = {en}, title = {Gyroscopic gravitational memory from binary systems}, publisher = {Perimeter Institute}, year = {2024}, month = {may}, note = {PIRSA:24050071 see, \url{https://pirsa.org}} }

Ali Seraj Université Libre de Bruxelles

## Abstract

I will review the "gyroscopic gravitational memory”, the permanent effect of gravitational waves on freely-falling gyroscopes far from the source of gravitational radiation. Then, I will compute the effect created by binary systems in the post-Newtonian approximation. The discussion naturally involves the helicity of gravitational waves and gravitational electric-magnetic duality.

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