11:00 am–12:00 pm ERC 401
Title: New computational schemes for gravitational waves and for self-gravitating systems
Abstract: I will discuss two very different efficient new computational schemes. The first involves gravitational lensing of gravitational waves. If astrophysical gravitational waves are lensed, the wavelengths may not be completely negligible compared with the size of the lens, implying that wave-optics effects must be taken into account. I will describe a new approach to numerically evaluating these wave-optics effects. The second involves a new approach to simulating spherically symmetric dark-matter halos that allows calculations that previously required days of supercomputer time to be done in minutes to hours on a laptop. I will illustrate with results that show the evolution of halos with decaying and/or self-interacting dark matter, supermassive black-hole growth, or tidal stripping.
Zoom: https://uchicago.zoom.us/j/96602368359?pwd=IkjlvbgYWG56LPvnyibAje80dqc9wI.1
