English

Do we Owe our Existence to Gravitational Waves?

High Energy Astrophysical Phenomena 2024-02-07 v1

Abstract

Two heavy elements essential to human biology are thought to have been produced by the astrophysical rr-process, which occurs in neutron-rich environments: iodine is a constituent of thyroid hormones that affect many physiological processes including growth and development, body temperature and heart rate, and bromine is essential for tissue development and architecture. Collisions of neutron stars (kilonovae) have been identified as sources of rr-process elements including tellurium, which is adjacent to iodine in the periodic table, and lanthanides. Neutron-star collisions arise from energy loss due to gravitational-wave emission from binary systems, leading us to suggest that gravitational waves have played a key role in enabling human life by producing iodine and bromine. We propose probing this proposal by searching in lunar material for live 129^{129}I deposited by a recent nearby kilonova explosion.

Cite

@article{arxiv.2402.03593,
  title  = {Do we Owe our Existence to Gravitational Waves?},
  author = {John Ellis and Brian D. Fields and Rebecca Surman},
  journal= {arXiv preprint arXiv:2402.03593},
  year   = {2024}
}

Comments

3 pages, 1 figure. Comments welcome

R2 v1 2026-06-28T14:39:28.560Z