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SUMMARY:Probability distribution of astrophysical gravitational-wave backg
 round fluctuations - Barry Ginat (Oxford)
DTSTART:20231106T130000Z
DTEND:20231106T140000Z
UID:TALK204409@talks.cam.ac.uk
CONTACT:Dr  Dong-Gang Wang
DESCRIPTION:The coalescence of compact binary stars is expected to produce
  a stochastic background of gravitational waves (GW) observable with futur
 e GW detectors. In this talk\, I’ll present a method to calculate the fu
 ll probability distribution of strain fluctuations\, which contains more i
 nformation than the GW energy density (the second moment). I will describe
  applications both for time series data and a frequency-domain analysis. I
 ’ll illustrate how this probability distribution can be evaluated numeri
 cally\, and\, additionally\, derive accurate analytic asymptotic expressio
 ns for the large strain tail\, demonstrating that it is dominated by the n
 earest source\, and that it exhibits a universal power-law decline. I will
  also discuss to what extent the background may be treated as Gaussian\, a
 nd how the accuracy of this approximation varies with frequency.
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
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