| Tuesday, February 14, 2023 |
| Astro Journal Club | |
| Event Type: Other | |
| Time: 12:30 PM - 1:30 PM | |
| Location: 726 Broadway, 940, CCPP Seminar | |
| Black hole perturbation theory: Love numbers and nonlinear ring-down | |
| Lam Hui, Columbia University | |
| Event Type: Astro Seminar | |
| Time: 2:00 PM - 3:15 PM | |
| Location: 726 Broadway, 940, CCPP Seminar | |
| Abstract: We will discuss two recent developments in black hole perturbation theory: (1) the symmetries behind the well-known vanishing of the tidal Love numbers, and (2) second order quasi-normal modes during the ring-down phase after a binary merger. | |