Speaker
Graham White
(Southampton)
Description
The sound shell source from a cosmic phase transition is a compelling explanation for the stochastic gravitational wave background recently seen by various PTA collaborations. I discuss motivations for such a phase transition as well as comparing the sound shell model using the full velocity profile, as opposed to the broken power law that results from using the rms fluid velocity. Finally I give some theoretical improvements that can be made on this analysis.
Author
Graham White
(Southampton)
