Table A.1.
Best-fit parameters for the Chandra PDSs showing the broad feature.
| ObsID | ν0 | Δν | νchar | Q | rms | χ2/dof |
|---|---|---|---|---|---|---|
| (mHz) | (mHz) | (mHz) | (%) | |||
| 13813 | 0.97−0.10+0.11 | 1.51−0.32+0.44 | 1.23−0.13+0.16 | 0.6 | 33.1 ± 2.0 | 29.08/42 |
| 13812 a | 0.94−0.10+0.10 | 1.34−0.26+0.33 | 1.15−0.11+0.13 | 0.7 | 39.8 ± 2.1 | 45.25/44 |
| 15496 ab | 0.66−0.12+0.44 | 0.8−0.4+1.5 | 0.78−0.15+0.54 | 0.8 | 31.6−4.2+6.4 | 18.90/25 |
| 13814 | 0.83 ± 0.11 | 1.17−0.27+0.39 | 1.02−0.12+0.15 | 0.7 | 33.8 ± 2.6 | 25.27/42 |
| 13815 b | 0.39−0.12+0.10 | 0.60−0.20+0.27 | 0.49−0.12+0.11 | 0.7 | 41.5−4.3+2.2 | 16.39/26 |
Notes. Parameters of the Lorentzian obtained from the fit of the 0.5–10 keV PDSs of the Chandra archival observations showing the broad feature in the mHz range. ν0: centroid frequency of the Lorentzian. Δν: full width at half maximum (FWHM) of the Lorentzian. νchar: characteristic frequency of the Lorentzian. Q = ν/Δν: approximate quality factor of the Lorentzian. rms: rms fractional variability of the Lorentzian. Errors given at 1σ (68.3%) confidence level. Two additional components have been added to the fit to take into account the white and red noise at high and low frequencies, respectively, unless otherwise stated.
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