Why do we See Broad Lines in X-Ray Absorbed Agn?

Details Why do we See Broad Lines in X-Ray Absorbed Agn? Why do we See Broad Lines in X-Ray Absorbed Agn?

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1277w&link_type=abstract

Chandra Proposal ID #04700553

Computer Science

Chandra Proposal Id #04700553

Scientific paper

The Chandra X-ray spectra of red, broad-line AGN are hard. This, combined with their unusually high optical polarization, suggests substantial obscuration (log NH 21-23/sq cm) toward the nuclear energy source, despite a clear view of the broad emission line region. Our Cycle 2 Chandra sample was selected from the Two Micron All-Sky Survey (2MASS) red AGN catalog, a previously unknown population whose number density rivals that of optically selected AGN. We propose observations of 20 more and 2 previously undetected 2MASS AGN yielding a sample of 46, clearly pre-selected for complex absorption and sufficient to study the relative X-ray and optical obscuration for each AGN class. Results are key to understanding the AGN population and thus the importance of accretion in the universe.

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