LensCLEANing B0218+357

Poster presented at the JENAM 2003 meeting, workshop Radio Astronomy at 70: from Karl Jansky to microjansky
Baltic Astronomy 14 (2005) 409-412

ADS bibcode 2005BaltA..14..409W

Olaf Wucknitz [1]

  1. Universität Potsdam, Institut für Physik, Am Neuen Palais 10, 14469 Potsdam, Germany

Abstract

Radio observations of gravitational lenses are an important case in which the data reduction and scientific analysis should and need not be separated. We present results of the LensCLEAN method applied to B0218+357 showing the power of combining the two tasks. LensCLEAN does not only produce improved maps by including the constraints provided by lensing but also constrains the lens model itself by minimizing the residuals between the best lensed source emission model and the observed radio data. One important result is an estimate of the Hubble constant from the time-delay in the lens B0218+357.

This poster summarises our Paper I and Paper II on the subject. You can find the proceedings version of the poster here


Baltic Astronomy 14 (2005) 409-412 (link to online journal)
ADS bibcode 2005BaltA..14..409W (link to ADS entry)


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