Efficient wide-field VLBI imaging

Poster for the splinter meeting The Radio Sky: LOFAR to SKA at the AG annual meeting in Bonn, 14-17 Sep 2010

O. Wucknitz

  1. Argelander-Institut für Astronomie, Auf dem Hügel 71, 53121 Bonn, Germany

Abstract

Wide-field imaging of the radio sky at milli-arcsec resolution is currently restricted to limited numbers of small fields around known sources, due to the immense computational effort needed to image large fields. With the newly developed “Fast Wide-Field Mapping” algorithm, the computational efficiency is increased by orders of magnitude, making wide-field imaging with VLBI possible routinely. In the future, this method will hopefully help to bring the computational burden in SKA imaging down to a manageable level. This poster describes the idea and reports on results from first tests.



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