GW detectors -- How much has their sensitivity improved since 2008?

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SUMMARY

Since 2008, gravitational wave (GW) detectors have significantly improved in sensitivity, allowing for the detection of more subtle signals from cosmic events. The advancements in technology and methodologies have enabled the identification of black hole mergers and other phenomena that were previously undetectable. The ongoing enhancements in detectors like LIGO and Virgo have expanded the range of observable events, confirming indirect evidence of black holes through their gravitational effects on surrounding matter.

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  • Understanding of gravitational wave physics
  • Familiarity with LIGO and Virgo detector technologies
  • Knowledge of black hole astrophysics
  • Basic principles of general relativity
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  • Research the latest advancements in LIGO and Virgo detector sensitivity
  • Explore the implications of gravitational wave detections on black hole research
  • Study the methodologies used in gravitational wave data analysis
  • Investigate the significance of the events listed on the Wikipedia page for gravitational wave observations
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Astronomers, astrophysicists, and researchers interested in gravitational wave detection and black hole studies will benefit from this discussion.

MathematicalPhysicist
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According to Schutz's second edition of "A First Course in GR" on page 318:
The simplicity of the black hole model has made it possible to identify systems containing black holes based only on indirect evidence, on their effects on nearby gas and stars. Until gravitational wave detectors become sufficiently sensitive to detect radiation from black holes, this will be the only way to find them.
So to my question.
The book was written in 2008, since then have the GW detectors become sufficiently sensitive to detect radiation from black holes?
What has changed since 2008?

Thanks!
 
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This Wikipedia page has a nice list of GW detection events:

https://en.wikipedia.org/wiki/List_of_gravitational_wave_observations

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