Discovery of the Hidden Seyfert 1 Nucleus in Markarian 463

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

Hubble Space Telescope imaging polarimetry of the Seyfert 2 galaxy Markarian 463 E has revealed the location of an obscured Seyfert 1 nucleus. Curiously, the Seyfert 1 is not co-spatial with the optically bright Seyfert 2, but is located 1\arcsec ( ~ 1 kpc) to the south, at the tip of what was previously thought to be an optical jet. The high spatial resolution broad-band UV imaging achieved with the Faint Object Camera reveals a distinct cone of highly polarized (13 +/- 3 %) light fanning northward from the obscured nucleus. The magnetic polarization vectors point at the cone's apex, indicating that te wedge of illuminated material (opening angle ~ 70\(^{\circ} \) is the scattering mirror that allows us to see the Seyfert 1 core.

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