Talk detail

Participant	Bohé, Alejandro
Institution	Institut d'Astrophysique de Paris - 98bis, boulevard Arago - Paris - Paris - France

Session	GW1	Accepted		Order	Time
Talk	Oral abstract	Title	The gravitational wave stochastic background from cosmic strings
Co-authors
Abstract	Cosmic strings are line-like objects of cosmic size that are predicted to form in a wide variety of models in the early universe but so far, they have never been observed. One of their most promising signatures is the stochastic background of gravitational waves that they emit and which could be detectable by the next generation of ground-based interferometers, by the future space interferometer eLISA or with pulsar timing observations. In this talk, I will revisit the computation of the GW background produced by cosmic string networks and discuss its essential and distinctive properties. So far, in the literature, two simplified models of network evolution have been used to compute the background. I will also show that using a more realistic loop distribution leads to a significantly stronger signal than usually predicted.

Session	AN1	Accepted		Order	Time
Talk	Oral abstract	Title	The gravitational wave stochastic background from cosmic strings
Co-authors
Abstract	Cosmic strings are line-like objects of cosmic size that are predicted to form in a wide variety of models in the early universe but so far, they have never been observed. One of their most promising signatures is the stochastic background of gravitational waves that they emit and which could be detectable by the next generation of ground-based interferometers, by the future space interferometer eLISA or with pulsar timing observations. In this talk, I will revisit the computation of the GW background produced by cosmic string networks and discuss its essential and distinctive properties.