Spectropolarimetry of Compton-thin Seyfert 2s

(2) Institute of Astronomy; (3) Department of Physical Sciences; Astronomy; D.M. Alexander (2); J.H. Hough (3) ((1) Department of Physics; S.L. Lumsden (1); University of Cambridge; University of Hertfordshire); University of Leeds

arxiv: astro-ph/0311615 · v1 · submitted 2003-11-28 · 🌌 astro-ph

Spectropolarimetry of Compton-thin Seyfert 2s

S.L. Lumsden (1) , D.M. Alexander (2) , J.H. Hough (3) ((1) Department of Physics , Astronomy , University of Leeds , (2) Institute of Astronomy , University of Cambridge , (3) Department of Physical Sciences

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University of Hertfordshire)

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keywords seyfertgalaxiesbroadcompton-thingalaxyhalpharesultssample

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We present new spectropolarimetry of a sample of nearby Compton-thin Seyfert 2 galaxies (ie those with N_H<10^23 cm^-2). We show that the detection rate of scattered broad Halpha in this sample is considerably higher than in Seyfert 2 galaxies as a whole. Our results also show that in this low obscuration set it is possible to find scattered broad Halpha even when the global properties of the galaxy are largely dominated by the host galaxy and not the active galactic nucleus. These results argue against the existence of a population of `pure' Seyfert 2 galaxies.

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Spectropolarimetry of Compton-thin Seyfert 2s

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