AAS 197, January 2001
Session 123. Early Universe, Cosmic Evolution and the Alternative
Oral, Thursday, January 11, 2001, 1:30-3:00pm, Golden Ballroom

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[123.02] Gravitational Lensing of Polarized Radio Sources

C.R. Burns, C.C. Dyer (Univ. of Toronto)

Polarization has been shown to be invariant under gravitational lensing and therefore can be used to constrain lensing models. In particular, if the polarization is correlated with the intrinsic morphology of the source (for example, the synchrotron emission from radio jets), then one can detect weak gravitational lensing by measuring deviations from this correlation. This technique has the advantage of sampling continuously the lensing potential and can therefore constrain the shape of the mass distribution. In the case of multiple imaging, the polarization can add constraints to the lensing model, since it is mapped as a vector quantity as opposed to the intensity, which maps as a scalar. This paper will describe the technique and results of using polarization to constrain gravitational lens models.

If you would like more information about this abstract, please follow the link to http://www.astro.utoronto.ca/~burns. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: burns@astro.utoronto.ca

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