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Determination of NGC 4151 Nucleus Mass from Parameters of Narrow Satellites of Broad Lines
Published online by Cambridge University Press: 25 May 2016
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The paper considers the possibility of AGN mass estimation from observations of spectral lines emitted by jets. Jets are a typical for AGNs.
Similar to SS433 the inner parts of AGN jets may emit spectral lines. 88433 spectra show that jet lines are week in comparison with those of slowly outflowing gas. Consequently the proper time for AGNs jet lines observations is the deep brightness minima (so-called transition from Sy1 type to Sy2 type of spectra). It is possibly the only chance for jet lines observations, because on the Sy1 stage gas surrounding the central object can. be optically thick in the broad lines wings or at least light up the week jet lines. The only well studied case of A(;N transition from Sy1 to Sy2 with evidence of jets is NGC 4151 when this galaxy was in a deep minimum of brightness during the 1984-1987.
- Type
- Session 3: Diagnostics of High Gravity Objects with X- and Gamma Rays
- Information
- Copyright
- Copyright © Kluwer 1998
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