Big Bang Nucleosynthesis Limits and Relic Gravitational Waves Detection Prospects
Cosmology and Nongalactic Astrophysics
2022-06-22 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
We revisit the big bang nucleosynthesis (BBN) limits on primordial magnetic fields and/or turbulent motions accounting for the decaying nature of turbulent sources between the time of generation and BBN. This leads to larger estimates for the gravitational wave (GW) signal than previously expected. We address the detection prospects through space-based interferometers (for GWs generated around the electroweak energy scale) as well as pulsar timing arrays and astrometric missions (for GWs generated around the quantum chromodynamics energy scale).
Cite
@article{arxiv.2111.09541,
title = {Big Bang Nucleosynthesis Limits and Relic Gravitational Waves Detection Prospects},
author = {Tina Kahniashvili and Emma Clarke and Jonathan Stepp and Axel Brandenburg},
journal= {arXiv preprint arXiv:2111.09541},
year = {2022}
}
Comments
9 pages; 6 figures; discussions and references added; typos fixed; conclusions unchanged