Geometry of AGN on parsec and micro parsec scales

Details Geometry of AGN on parsec and micro parsec scales Geometry of AGN on parsec and micro parsec scales

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aipc..254..486a&link_type=abstract

In: Testing the AGN paradigm; Proceedings of the 2nd Annual Topical Astrophysics Conference, Univ. of Maryland, College Park, Oc

Astronomy and Astrophysics

Astronomy

41

Active Galactic Nuclei, Black Holes (Astronomy), Geometry, Optical Reflection, Polarization Characteristics, Radio Occultation, Infrared Spectroscopy, Near Infrared Radiation, Spectral Line Width

Scientific paper

This paper will discuss severa1 aspects of the geometry of AGN, with an emphasis on polarization observations. First, I describe the occultation/reflection model for broad-line and narrow-line AGN, with a detailed update on the prototype NGC 1068. Next, I list the radio-quiet and radio-loud objects with evidence for obscured or occulted Type 1 nuclei from either polarimetry or near-IR spectroscopy. All of these observations probably bear on AGN geometry on scales of less than about 1 pc to greater than about 100 pc. Finally, the unfavorable spectropolarimetric test of the thin accretion disk model is presented in a preliminary way. Other dilemmas for the disk model are also discussed.

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