Physics
Scientific paper
Jul 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hst..prop10553s&link_type=abstract
HST Proposal ID #10553
Physics
Hst Proposal Id #10553 Agn/Quasars
Scientific paper
The Unified Scheme for Seyfert galaxies successfully explains the basic distinctions between Type 1 and Type 2 AGN, including the existence of broad scattered lines in polarized flux spectra of the latter. However, it fails to account for the strongly polarized broad lines often observed in Type 1 AGN. We have discovered an intermediate type red QSO that exhibits polarization properties of both types; indeed it suggests a bipolar scattering geometry similar to that seen in Galactic protoplanetary nebulae. We request a small allocation with the high-resolution camera on ACS to image the object in two key spectral bands. The results will allow an unambiguous interpretation of ground-based data, and enable modeling of the inclination and opening angle that illuminates the scattering clouds. Like NGC 1068, a successful explanation of this object will not only allow further unification of AGN but also aid in unraveling the details of their inner structure.
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