and Cosmology

Prof. Dr. Peter Schneider
Argelander-Institut für Astronomie
Universität Bonn
Auf dem Hügel 71
D-53121 Bonn, Germany
e-mail: peter@astro.uni-bonn.de
Library of Congress Control Number: 2006931134
ISBN-10 3-540-33174-3
Springer Berlin Heidelberg New York
ISBN-13 978-3-540-33174-2
Springer Berlin Heidelberg New York
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Cover: The cover shows an HST image of the cluster RXJ 1347−1145,
the most X-ray luminous cluster of galaxies known. The large number
of gravitationally lensed arcs, of which only two of them have been
detected from ground-based imaging previously, clearly shows that
this redshift z = 0.45 cluster is a very massive one, its mass being
dominated by dark matter. The data have been processed by Tim
Schrabback and Thomas Erben, Argelander-Institut für Astronomie
of Bonn University.
The use of general descriptive names, registered names, trademarks,
etc. in this publication does not imply, even in the absence of a specific
statement, that such names are exempt from the relevant protective
laws and regulations and therefore free for general use.
Typesetting and production:
LE-TEX Jelonek, Schmidt & Vöckler GbR, Leipzig, Germany
Cover design: Erich Kirchner, Heidelberg
Printed on acid-free paper 55/3141/YL – 543210