GaBoDS: The Garching-Bonn Deep Survey -- II. Confirmation of EIS cluster   candidates by weak gravitational lensing
  We report the first confirmation of colour-selected galaxy cluster candidates by means of weak gravitational lensing. Significant lensing signals were identified in the course of the shear-selection programme of dark matter haloes in the Garching-Bonn Deep Survey, which currently covers 20 square degrees of deep, high-quality imaging data on the southern sky. The detection was made in a field that was previously covered by the ESO Imaging Survey (EIS) in 1997. A highly significant shear-selected mass-concentration perfectly coincides with the richest EIS cluster candidate at z~0.2, thus confirming its cluster nature. Several other shear patterns in the field can also be identified with cluster candidates, one of which could possibly be part of a filament at z~0.45. 
Mischa Schirmer (1), Thomas Erben (1), Peter Schneider (1), Christian   Wolf (2), Klaus Meisenheimer (3) ((1) Institut fuer ...