The Variability of the Highly Polarized Double-Peaked Hα Emission in NGC 5252 and NGC 2110

Details The Variability of the Highly Polarized Double-Peaked Hα Emission in NGC 5252 and NGC 2110 The Variability of the Highly Polarized Double-Peaked Hα Emission in NGC 5252 and NGC 2110

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21110801t&link_type=abstract

American Astronomical Society, AAS Meeting #211, #108.01; Bulletin of the American Astronomical Society, Vol. 39, p.936

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Scientific paper

We present the detection of the extremely broad, double-peaked, highly polarized Hα emission lines in the nuclei of the well-known Seyfert 2 galaxies NGC 5252 and NGC 2110. These polarized, broad Hα emission lines are shown to display significant variability in strength and profile on timescales of 1yr. These findings and other properties indicate that NGC 5252 and NGC 2110 are the hidden counterparts to the extremely broad-line double-peaked emission-line AGNs, whose examples include Arp 102B and 3C 332. That the broad emission line shows variability in polarized flux also suggests that the scattering region is very compact, or views a very small fraction of the emitting disk.

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