EDP Sciences Journals List
Advanced Search
Subscriber Authentication Point
Home All issues Volume 420/ 1 Article

Free access article

Issue A&A
Volume 420, Number 1, June II 2004
Page(s) 75 - 78
Section Cosmology (including clusters of galaxies)
DOI http://dx.doi.org/10.1051/0004-6361:20041072



A&A 420, 75-78 (2004)
DOI: 10.1051/0004-6361:20041072

GaBoDS: The Garching-Bonn Deep Survey

II. Confirmation of EIS cluster candidates by weak gravitational lensing
M. Schirmer1, T. Erben1, P. Schneider1, C. Wolf2 and K. Meisenheimer3

1  Institut für Astrophysik und Extraterrestrische Forschung (IAEF), Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany
2  Department of Physics, Denys Wilkinson Bldg., University of Oxford, Keble Road, Oxford, UK
3  Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany

(Received 21 January 2004 / Accepted 8 March 2004 )

Abstract
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 $z\approx0.2$, 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 $z\approx0.45$.


Key words: cosmology: dark matter -- galaxies: clusters: general -- cosmology: gravitational lensing

Offprint request: M. Schirmer, mischa@astro.uni-bonn.de

SIMBAD Objects



© ESO 2004

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.
  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.