LensClean and the Hubble constant from the gravitational lens B0218+357
O. Wucknitz [1]
- Institut für Physik, Universität Potsdam, Am Neuen Palais, D-14469 Potsdam, Germany
Abstract
B0218+357 is one of the best candidates to determine the Hubble constant
from the time delay of a gravitational lens, if -- but only if -- all the
available data are used as constraints for the mass models. Our work for
the first time utilizes the structure of the nice Einstein ring in this
system in order to determine the position of the lens. In this talk I
review the published results and present a preliminary analysis of a new
data set taken with the VLA + Pie Town, which has the potential to reduce
the uncertainties dramatically. A further result is the first
reconstruction of the polarization structure of the source.
Find more information about the topic in Paper I, Paper II, and my PhD thesis.
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Script last modified on 7 Sep 2010
Last change to this data base entry on 7 Oct 2004