Nuclear obscuration in the high-ionization Seyfert 2 galaxy Tol 0109-383

Abstract

We report the BeppoSAX detection of a hard X-ray excess in the X-ray spectrum of the classical high-ionization Seyfert 2 galaxy Tol0109-383. The X-ray emission of this source observed below 7 keV is dominated by reflection from both cold and ionized gas, as seen in the ASCA data. The excess hard X-ray emission is presumably due to the central source absorbed by an optically thick obscuring torus with N(H)~2e24 cm-2. The strong cold X-ray reflection, if it is produced at the inner surface of the torus, is consistent with the picture where much of the inner nucleus of Tol0109-383 is exposed to direct view, as indicated by optical and infrared properties. However, the X-ray absorption must occur at small radii in order to hide the central X-ray source but leave the optical high-ionization emission line region unobscured. This may also be the case for objects like the Seyfert 1 galaxy Mrk231.

7 pages, MNRAS in press

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• On the Lx-L6micron ratio as a diagnostic for Compton-thick AGN
• The Difference in Narrow Fe KαLine Emission Between Seyfert 1 and Seyfert 2 Galaxies
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• Chandra and XMM-Newton observations of Tololo 0109-383
• Multi-wavelength Probes of Obscuration Towards the Narrow Line Region in Seyfert Galaxies
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