Big Bang Nucleosynthesis Limits and Relic Gravitational-Wave Detection Prospects
Tina Kahniashvili, Emma L. Clarke, Jonathan Stepp, Axel Brandenburg
Abstract
We revisit the big bang nucleosynthesis limits on primordial magnetic fields and/or turbulent motions accounting for the decaying nature of turbulent sources between the time of generation and big bang nucleosynthesis. This leads to larger estimates for the gravitational wave signal than previously expected. We address the detection prospects through space-based interferometers and pulsar timing arrays or astrometric missions for gravitational waves generated around the electroweak and quantum chromodynamics energy scale, respectively.
Topics & Concepts
PhysicsBig Bang nucleosynthesisGravitational wavePulsarNucleosynthesisBig Bang (financial markets)AstronomyGravitational wave backgroundAstrophysicsElectroweak interactionGravitational-wave observatoryParticle physicsStarsFinanceEconomicsPulsars and Gravitational Waves ResearchCosmology and Gravitation TheoriesGamma-ray bursts and supernovae