Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-11-04
Astronomy and Astrophysics
Astrophysics
To appear in the proceedings of "AGN Physics with the SDSS", eds. G. T. Richards and P. B. Hall (San Francisco: ASP) (2004), 4
Scientific paper
We discuss the crucial role of a dynamical picture in the analysis of AGN intrinsic absorbers data. High quality FUSE data of Mrk 279 are used to demonstrate that the line of sight covering fraction is a strong function of velocity. In Mrk 279, as well as in most cases where the data is of high enough quality, the shape of the absorption troughs is mainly determined by the velocity-dependent covering fraction. We argue that the traditional ``cloud'' picture of AGN outflows is hard pressed to account for the velocity-dependent covering fraction, as well as for the highly super-thermal width of the troughs and the detached trough phenomenon. A disk outflow picture naturally explains these features and furthermore, is using the simplest reservoir for the outflowing material: The accretion disk around the black hole. Accounting for velocity dependent covering can drastically increase the inferred ionic column density of the analyzed trough, an increase which is amplified in the total column density and ionization parameter solution for the AGN outflow trough.
No associations
LandOfFree
Outflows vs. Clouds in AGN Intrinsic Absorbers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Outflows vs. Clouds in AGN Intrinsic Absorbers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Outflows vs. Clouds in AGN Intrinsic Absorbers will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-627595