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- W2105890204 abstract "We here estimate the mass M of the central object in five active galactic nuclei (AGNs), using the most recent reverberation data obtained by the AGN Watch Consortium. The cross-correlation function (CCF) centroids of the broad Lyα λ1216 and C IV λ1549 lines are used to estimate the size of the broad-line region (BLR) in these sources. We calculate the velocity dispersions of these lines in the root mean square (rms) spectra and then use our results to estimate M. We argue that our technique of calculating the velocity dispersion should work in the general case of an arbitrary line profile, unlike methods that depend on the measurement of the full-width at half-maximum (FWHM) of the broad line. We also show that our results agree with the FWHM method in the limit of a normal (Gaussian) line profile. The masses calculated here are considerably smaller than those calculated with the previous generation of reverberation data." @default.
- W2105890204 created "2016-06-24" @default.
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- W2105890204 date "2000-04-10" @default.
- W2105890204 modified "2023-09-26" @default.
- W2105890204 title "Determination of the Central Mass in Active Galactic Nuclei Using Cross‐Correlation Lags and Velocity Dispersions" @default.
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- W2105890204 doi "https://doi.org/10.1086/308671" @default.
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