Are there any true Seyfert 2 nuclei?

Details Are there any true Seyfert 2 nuclei? Are there any true Seyfert 2 nuclei?

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1521p&link_type=abstract

Chandra Proposal ID #05700639

Computer Science

Chandra Proposal Id #05700639

Scientific paper

In the unified model, Seyfert 2s are Seyfert 1s with the central source and broad-line region obscured by a dusty torus or host galaxy dust. The idea is so compelling that obscured AGN are often called Type 2 regardless of whether they have narrow-line spectra. However, are there "true" Seyfert 2s: low-luminosity, unobscured AGN with no broad-line regions? We propose ACIS-S spectroscopy of 5 Seyfert 2s that have apparently unobscured nuclei seen by HST, and with HST STIS spectra showing no broad emission lines in direct light, unreddened blue continua, and rich, high-excitation narrow-line spectra. The unified model predicts they should have highly absorbed X-ray spectra. Do they? These are our best candidates for true Type 2 Seyferts.

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