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Thu 05/25/23 14:00 salle séminaire BAT 20

Seminar
SMITH Tristan (Swarthmore College (USA))
An informal introduction to pulsar timing arrays

(LUPM/Particules, Astroparticules, Cosmologie : Théorie)


Summary:

In 2015 the LIGO collaboration announced the first direct detection of gravitational waves from the coalesce of two intermediate mass black holes, ushering in a new era in direct observations of extreme gravitational environments. Since then, laser interferometers have detected 100s more binary systems. The next gravitational frontier is to use observations of pulsars to form what is effectively a galactic sized gravitational wave detector. These pulsar timing arrays (PTAs) have been in operation for nearly two decades in North America, Europe, and Australia. I will discuss the basic physics behind PTAs and some of the key details of their data analysis. If there is time, I will discuss ways in which we can use PTAs to detect physics beyond the standard model.


For more information please contact Poulin V.