Table 1
The objects studied in this work.
| Name (Type) | Flux | Fvar | χ2/(d.o.f) | BHmass (M⊙) | References |
| (×10-10 ergs-1cm-2) | |||||
|
|
|||||
| NGC 4151(S1.5) | 5.33 | 0.370 ± 0.005 | 11058/1326 |
|
1 |
| (0.37 ± 0.01) | (4272/1326) | ||||
| NGC 4945(S2) | 3.01 | 0.56 ± 0.02 | 2491/568 | 1.4 × 106 | 2 |
| (0.43 ± 0.03) | (1096/568) | ||||
| NGC 2110(S2) | 2.97 | 0.43 ± 0.02 | 2823/585 | 2 × 108 | 3 |
| (0.45 ± 0.03) | (1256/585) | ||||
| IC 4329(S1.2) | 2.90 | 0.35 ± 0.02 | 1403/526 |
|
4 |
| (0.32 ± 0.05) | (703/526) | ||||
| NGC 4388(S2) | 2.76 | 0.47 ± 0.01 | 2985/658 | 6 × 106 | 3 |
| (0.48 ± 0.02) | (1336/658) | ||||
Notes. Average fluxes in the 14–195 keV band are taken from Baumgartner et al. (2011). Columns 3 and 4 list the BH mass measurement that we use in this work, and the references for these values. The fractional variability amplitudes, as well as χ2 values when we fit the light curves with a constant (and number of degrees of freedom), are listed for the 20–50 keV band light curves (in parenthesis for the hard 50–100 keV light curves). They are calculated using light curves binned in units of 2 days (of 1 day in the case of NGC 4151; see text for details).
References. The references for the BH mass estimates are as follows: (1) Bentz et al. (2006); (2) Greenhill et al. (1997); (3) Woo & Urry (2002); (4) Markowitz (2009).
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