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Polarization microlensing in the quadruply imaged broad absorption line quasar H1413+117

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      Abstract

      We have obtained spectropolarimetric observations of the four images of the gravitationally lensed broad absorption line quasar H1413+117. The polarization of the microlensed image D is significantly different both in the continuum and in the broad lines from the polarization of image A which is essentially unaffected by microlensing. The observations suggest that the continuum is scattered off two regions spatially separated and producing roughly perpendicular polarizations. These results are compatible with a model in which the microlensed polarized continuum comes from a compact region located in the equatorial plane close to the accretion disk and the non-microlensed continuum from an extended region located along the polar axis.

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      Journal
      2015-10-20
      2015-10-30
      1510.06047 10.1051/0004-6361/201527243

      http://arxiv.org/licenses/nonexclusive-distrib/1.0/

      Custom metadata
      A&A 584, A61 (2015)
      Accepted for publication in Astronomy and Astrophysics; minor changes (language editing)
      astro-ph.GA

      Galaxy astrophysics

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