Determining the Nature of the Variable Absorption in Agn: Monitoring NGC 3783 with HST & Chandra

Details Determining the Nature of the Variable Absorption in Agn: Monitoring NGC 3783 with HST & Chandra Determining the Nature of the Variable Absorption in Agn: Monitoring NGC 3783 with HST & Chandra

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cxo..prop..504c&link_type=abstract

Chandra Proposal ID #02700128

Physics

Chandra Proposal Id #02700128

Scientific paper

The frequent occurrence of intrinsic absorption indicates that an important component has been missing from our overall picture of active galaxies. To understand the nature and origin of this component, and thereby use it as a probe of the active nucleus, we must know its location, physical conditions, and kinematics. Variability monitoring is the key to understanding the absorbers, by providing their radial locations, densities, and evolution in ionization, column density, velocity, and coverage of the inner active nucleus. HST/STIS and Chandra are ideal instruments for this pursuit, and NGC3783 is an ideal target, because it shows extremely variable absorption and rapid continuum variability in both the UV and X-rays.

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