URL: https://physikseminar.desy.de/hamburg/colloquia_in_2023/18_july_2023/@@siteview
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Opening a new window into the gravitational wave Universe with PTAs
Andrea Mitridate (DESY)
Auditorium (DESY Hamburg) and Zoom, 16:00h
By tracking arrival times of radio pulses from a collection of pulsars in the Milky Way, several pulsar timing array (PTA) collaborations have found convincing evidence for the presence of a stochastic background of gravitational waves permeating our galaxy. This background could originate from a cosmic population of super-massive black hole binaries orbiting each other at the center of galaxies, or from violent phenomena taking place fractions of a second after the Big Bang. I will discuss both these interpretations and how future data sets could allow us to pinpoint the origin of the observed gravitational wave background.
This is a hybrid colloquium.
Connection details at https://desy.zoom.us/j/99616528733
Meeting ID: 996 1652 8733
Meeting Password: 733220
