Science with the space-based interferometer eLISA. II: gravitational waves from cosmological phase transitions

Caprini, Chiara; Hindmarsh, Mark; Huber, Stephan J.; Konstandin, Thomas; Kozaczuk, Jonathan; Nardini, Germano; No, José Miguel; Petiteau, Antoine; Schwaller, Pedro; Servant, Géraldine; Weir, David

doi:10.1088/1475-7516/2016/04/001

articleJournal of Cosmology and Astroparticle PhysicsApr 1, 2016BRONZE OA

Science with the space-based interferometer eLISA. II: gravitational waves from cosmological phase transitions

CCChiara Caprini MHMark Hindmarsh SJStephan J. Huber TKThomas Konstandin JKJonathan Kozaczuk

Centre National de la Recherche Scientifique · Commissariat à l'Énergie Atomique et aux Énergies Alternatives · +11 more institutions

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Abstract

We investigate the potential for the eLISA space-based interferometer to detect the stochastic gravitational wave background produced by strong first-order cosmological phase transitions. We discuss the resulting contributions from bubble collisions, magnetohydrodynamic turbulence, and sound waves to the stochastic background, and estimate the total corresponding signal predicted in gravitational waves. The projected sensitivity of eLISA to cosmological phase transitions is computed in a model-independent way for various detector designs and configurations. By applying these results to several specific models, we demonstrate that eLISA is able to probe many well-motivated scenarios beyond the Standard Model of…

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Keywords

Physics
Gravitational wave
Cosmology
Universe
Interferometry
Phase transition
Classical mechanics
Astrophysics

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