Speaker
Marek Lewicki
Description
We are currently witnessing the dawn of a new era in astrophysics and cosmology, started by the LIGO/Virgo observations of Gravitational Waves (GWs). Recently, also the detection of a stochastic background of GWs at very low frequencies was announced by the Pulsar Timing Array collaborations. In this talk, I will discuss how GW signals are produced in very strong cosmological phase transitions and examine the possible implications of current data for this source as well as the prospects for detection in the upcoming next generation of experiments.