Gravitational radiation from a bulk flow model

2017/12/31 by T. Konstandin, Thomas Konstandin · 3 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Cosmology and Gravitation Theories #Envelope (radar) #Flow (mathematics) #Gravitation #Gravitational energy #Gravitational wave #Observable #Phase transition #Pulsars and Gravitational Waves Research #Radiation #Simple (philosophy) #astro-ph.CO #hep-ph

paper · pdf · doi:10.1088/1475-7516/2018/03/047

19 pages, 7 figures, matches published version

openalex created_date 2018/01/05 · openalex publication_date 2018/03/29 · arxiv created 2018/08/20 · arxiv updated 2018/08/21 · openalex updated_date 2026/08/05

Abstract

We perform simulations in a simple model that aims to mimic the hydrodynamic evolution of a relativistic fluid during a cosmological first-order phase transitions. The observable we are concerned with is hereby the spectrum of gravitational radiation produced by colliding fluid shells. We present simple parameterizations of our results as functions of the wall velocity, the duration of the phase transition and the latent heat. We also improve on previous results in the envelope approximation and compare with hydrodynamic simulations.

Citations

• Gravitational radiation from colliding vacuum bubbles: Envelope approximation to many-bubble collisions
• Gravitational wave generation from bubble collisions in first-order phase transitions: An analytic approach
• Shape of the acoustic gravitational wave power spectrum from a first order phase transition

Cited by

• Detecting Cosmological Phase Transitions with Taiji: Sensitivity Analysis and Parameter Estimation
• NANOGrav results and dark first order phase transitions
• Gravitational waves from colliding vacuum bubbles in gauge theories