| Issue |
A&A
Volume 584, December 2015
|
|
|---|---|---|
| Article Number | A61 | |
| Number of page(s) | 5 | |
| Section | Extragalactic astronomy | |
| DOI | https://doi.org/10.1051/0004-6361/201527243 | |
| Published online | 20 November 2015 | |
Polarization microlensing in the quadruply imaged broad absorption line quasar H1413+117⋆
1
Institut d’Astrophysique et de Géophysique, Université de
Liège,
Allée du 6 Août 19c, B5c,
4000
Liège,
Belgium
e-mail:
hutsemekers@astro.ulg.ac.be
2
Departamento de Ciencias Fisicas, Universidad Andres
Bello, Fernandez Concha 700, Las
Condes, Santiago,
Chile
3 Millennium Institute of Astrophysics, Chile
Received: 25 August 2015
Accepted: 19 October 2015
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.
Key words: quasars: general / quasars: individual: H1413+117 / quasars: absorption lines
© ESO, 2015
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