Cosmology with gravitational waves
Isabela Matos
ICTP-SAIFR & IFT-UNESP, BR
Gravitational waves (GWs) are probes of the cosmological model since, as electromagnetic waves, they travel across the largest distances in our Universe. They can also track modifications of General Relativity on large scales, especially when combined with other cosmological probes. There are several methods for using such fascinating signals to learn more about cosmology. For instance, similarly to supernovae, GWs are distance indicators. When the redshifts of their sources can be inferred from electromagnetic counterparts or known indirectly via binary population studies or galaxy catalogs, it is possible to reconstruct the Hubble diagram, i.e. a distance-redshift relation. In this talk I will discuss some of the current methods for GW cosmology, focusing on prospects of multi-messenger observations with the Einstein Telescope and on combinations of GW data with large-scale structure probes.
My name is Isabela Matos and I am a first year postdoc working with Riccardo Sturani at ICTP-SAIFR & IFT-UNESP. I did my PhD in UFRJ (Rio de Janeiro), with a sandwich period at the University of Geneva. I work with cosmology and gravitational wave physics, and my main interest is to understand how much information about the history of the universe and dark energy we can extract from future gravitational wave observations.
Google Meet: https://meet.google.com/pcw-gmem-jyi
Link da transmissão: https://www.youtube.com/c/AstronomiaIAGUSP/live