Gravitational Wave Production by Collisions: More Bubbles
arXiv:0806.1828 · doi:10.1088/1475-7516/2008/09/022
Abstract
We reexamine the production of gravitational waves by bubble collisions during a first-order phase transition. The spectrum of the gravitational radiation is determined by numerical simulations using the "envelope approximation". We find that the spectrum rises as f^3.0 for small frequencies and decreases as f^-1.0 for high frequencies. Thus, the fall-off at high frequencies is significantly slower than previously stated in the literature. This result has direct impact on detection prospects for gravity waves originating from a strong first-order electroweak phase transition at space-based interferometers, such as LISA or BBO. In addition, we observe a slight dependence of the peak frequency on the bubble wall velocity.
15 pages, 4 figures; some comments added, published version
References in corpus (10)
- Gravitational wave generation from bubble collisions in first-order phase transitions: an analytic approach
- Theory and Numerics of Gravitational Waves from Preheating after Inflation
- A Gravitational Wave Background from Reheating after Hybrid Inflation
- Gravitational Wave Production At The End Of Inflation
- Dynamics of Non-renormalizable Electroweak Symmetry Breaking
- A stochastic background of gravitational waves from hybrid preheating
- The Spectrum of Gravitational Radiation from Primordial Turbulence
- Novel Effects in Electroweak Breaking from a Hidden Sector
- Production of Gravitational Waves in the nMSSM
- Detectability of Gravitational Waves from Phase Transitions