A characterization method for low-frequency seismic noise in LIGO Academic Article uri icon


  • We present a method to characterize the noise in ground-based gravitational-wave observatories such as the Laser Gravitational-Wave Observatory (LIGO). This method uses linear regression algorithms such as the least absolute shrinkage and selection operator to identify noise sources and analyzes the detector output vs noise witness sensors to quantify the coupling of such noise. Our method can be implemented with currently available resources at LIGO, which avoids extra coding or direct experimentation at the LIGO sites. We present two examples to validate and estimate the coupling of elevated ground motion at frequencies below 10Hz with noise in the detector output.

published proceedings


altmetric score

  • 9.18

author list (cited authors)

  • Valdes, G., Hines, A., Nelson, A., Zhang, Y., & Guzman, F.

citation count

  • 1

complete list of authors

  • Valdes, G||Hines, A||Nelson, A||Zhang, Y||Guzman, F

publication date

  • January 2022