Figure 1 from No Time for Dead Time: Timing Analysis of Bright Black Hole Binaries with NuSTAR

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No Time for Dead Time: Timing Analysis of Bright Black Hole Binaries with NuSTAR

Authors: Matteo Bachetti, Fiona A. Harrison, Rick Cook, John Tomsick, Christian Schmid, Brian W. Grefenstette, Didier Barret, Steven E. Boggs, Finn E. Christensen, William W. Craig, Andrew C. Fabian, Felix Fürst, Poshak Gandhi, Charles J. Hailey, Erin Kara, Thomas J. Maccarone, Jon M. Miller, Katja Pottschmidt, Daniel Stern, Phil Uttley, Dominic J. Walton, Jörn Wilms, and William W. Zhang

Bachetti et al. 2015 The Astrophysical Journal 800 109.

Provider: AAS Journals

Caption: Figure 1.

Left: the cospectrum and the PDS are compared in the case of pure Poisson noise, without (a) and with (b) dead time. The simulated incident count rate was 225 cts s⁻¹. The cospectrum mean is always zero. In these plots, it has been increased by two for display purposes. The frequency 1/τ_d is indicated. Right: the usual relation between the PDS and its standard deviation (, where M is the number of averaged PDSs) holds with and without dead time (c). Also, the variance of the cospectrum is half the variance of the PDS, in both cases (d).

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