An Attempt to Detect Gravitational Waves with the Yellowknife Seismic Array

The Yellowknife array of 19 vertical short-period seismometers was used to search for small coherent signals in the frequency range from about 1 to 8 Hz. Beamforming and autocorrelation of several hours of digital seismic recording lowers the background noise level to about 10−11 ms−1. Consistent pe...

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Bibliographic Details
Published in:Geophysical Journal of the Royal Astronomical Society
Main Author: Weichert, D. H.
Format: Text
Language:English
Published: Oxford University Press 1973
Subjects:
Online Access:http://gji.oxfordjournals.org/cgi/content/short/35/1-3/337
https://doi.org/10.1111/j.1365-246X.1973.tb02432.x
Description
Summary:The Yellowknife array of 19 vertical short-period seismometers was used to search for small coherent signals in the frequency range from about 1 to 8 Hz. Beamforming and autocorrelation of several hours of digital seismic recording lowers the background noise level to about 10−11 ms−1. Consistent peaks are observed at several frequencies, but terrestrial or instrumental origins have been identified for most components. None of the observed components shows correlation with sidereal time. There is, therefore, no evidence that gravitational waves have been detected.