Galactic hum
Astrophysics of Galaxies
2017-05-01 v1 Earth and Planetary Astrophysics
Abstract
A number of earth's tremor spectral peaks show a persistent narrow bandwidth incompatible with any geophysical or instrumental origin. These peaks, located at frequencies lower than a few mHz, are in principle consistent with the earth strain waves induced by monochromatic gravitational waves. Exploring this hypothesis under the current cosmological constraints yields that the tremor peaks below 2 mHz are in apparently significant coincidence with the theoretical emission of two binary systems each consisting of a small main sequence star with mass , captured by Sgr A* in a close orbit.
Cite
@article{arxiv.1704.08983,
title = {Galactic hum},
author = {Francesco Mulargia},
journal= {arXiv preprint arXiv:1704.08983},
year = {2017}
}