Computer Science
Scientific paper
Jul 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004hst..prop10284s&link_type=abstract
HST Proposal ID #10284
Computer Science
Hst Proposal Id #10284 Agn/Quasars
Scientific paper
HST observations of UV emission- and absorption-line spectra in AGN indicate the presence of highly structured outflows, characterized by complex large-scale flow patterns and small-scale clumpiness. These outflows are best explained as winds coming off accretion disks around supermassive black holes, propelled and shaped by a combination of line-radiation pressure and hydromagnetic forces. We propose to make the first comprehensive study of hybrid radiative/hydromagnetic winds in the context of AGN flows. We will particularly focus on a new class of instabilties, "radiative-magnetoacoustic'' modes, that show great promise for explaining both the global properties of the winds {velocity fields, mass loss rates} as well as the small-scale clumpiness. Our results will be fed into a 3D radiative transfer code to compute synthetic BEL and BAL line profiles, to study their time and shape variability, that can be directly compared with existing {and future} HST observations of AGN.
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