The Source and Lens of B0218+357 - New Polarization Radio Data to Constrain the Source Structure and H0 with LensCLEAN
O. Wucknitz [1]
- Institut für Physik, Universität Potsdam, Am Neuen Palais, D-14469 Potsdam, Germany
Abstract
I review the LensCLEAN method and published results on LensCLEANing VLA data for
B0218+357,
including the structure of the source and the position of the lens and thus
the Hubble constant.
In a second part of the talk, first results from a new 15 GHz dataset are
presented. These data were taken with the combination of the VLA plus the VLBA
telescope Pie Town with the aim to increase the S/N ratio and the resolution,
and thus be able to improve the accuracy of the results dramatically.
Full polarization data are used to achieve better constraints on lens models
and to map the polarization structure of the (lensed and unlensed) source in
order to help understanding the radial linear polarization patterns shown in
previous VLA maps.
Find the published VLA results in Paper I and Paper II on the subject and in my PhD thesis.
download original presentation
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Script last modified on 7 Sep 2010
Last change to this data base entry on 5 Jul 2004