Detection of Low-Frequency Gravitational Waves
A network of optical cavities could detect gravitational waves in an unexplored range of frequencies, according to researchers in the UK.
Using existing technology, astronomers could search for ripples in space-time across the milli-Hz frequency band at 10⁻⁵ Hz–1 Hz.
- Gravitational waves were first observed a decade ago.
- LIGO–Virgo–KAGRA detectors have spotted GWs from hundreds of merging black holes and neutron stars in the 10 Hz–30 kHz range.
- Pulsar timing arrays have observed a GW background at nanohertz frequencies.
However, GWs have yet to be detected in the milli-Hz band, which should include signals from binary systems of white dwarfs, neutron stars, and stellar-mass black holes, many of which would emanate from the Milky Way.
No direct quote available in the text.
Author's summary: Researchers propose using optical cavities to detect low-frequency gravitational waves.
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