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Examining AGN UV/Optical Variability beyond the Simple Damped Random Walk

  • Authors: Weixiang Yu, Gordon T. Richards, Michael S. Vogeley, Jackeline Moreno, Matthew J. Graham

Weixiang Yu et al 2022 The Astrophysical Journal 936 .

  • Provider: AAS Journals

Caption: Figure 5.

A comparison between the output DHO parameters obtained on simulated light curves and the true input; only simulations of overdamped DHOs are shown. Two versions of the output parameters are shown: the first one (orange) is the original MAP best fit, and the second one (blue) has the linear correction applied. The correction is determined from modeling the difference between the output and the input parameters in the form of Δlog(X) = log(X Output)–log(X Input), as a function of the temporal sampling and photometric accuracy of the light curves. Row one: scatter plots comparing the output DHO parameters (y-axis) with the input parameters (x-axis). Solid diagonal lines show a one-to-one correspondence. Row two: histograms showing the difference between the output DHO parameters and the input. The vertical dashed lines mark an offset of zero, meaning that the output is in perfect agreement with the input. Row three: the difference between the (corrected) output parameters and the input parameters as a function of the input parameters.

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