Re:Gravitational-wave detector LIGO is back
by kmote00 on Friday May 26, 2023 @03:40PM
(#36088655)
It's my understanding that it was correlated by data from the twin facility on the other side of the country.
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Re:Gravitational-wave detector LIGO is back
by throwawaymaths on Friday May 26, 2023 @11:15PM
(#36091770)
The problem is that we are seeing a lot of correlations. I'd be worried.
One technique that is straightforward to understand is that folks have done "time-slide" analyses for many years - i.e. offsetting one detector's data in time - to understand what the "baseline" rate of correlations is in data streams where there is no possible physical origin.
Naturally, much more statistical analysis has been done to ground the claims of "detection"; beyond detailed academic publications, LIGO and others have been producing layperson-accessible science summaries for years/decades that address these and other questions.
Re:Gravitational-wave detector LIGO is back
by throwawaymaths on Saturday May 27, 2023 @12:48AM
(#36092145)
> have been producing layperson-accessible science summaries for years/decades that address these and other questions.
Citation please. Every layperson accessible summary has said "we use advanced statistics and machine learning" and I haven't found a simple high school statistics accessible explanation yet. Please show me and correct me. I would love to be able to believe we have detected gravitational waves.
https://iopscience.iop.org/article/10.1088/1361-6382/ab685e
Probably not high school statistics accessible but Bayesian statistics and Gaussian noise and GR isn't.
Re:Gravitational-wave detector LIGO is back
by throwawaymaths on Saturday May 27, 2023 @12:49PM
(#36096167)
thank you, that is helpful.