Dr. Stefano Ettori (Team coordinator):

INAF/OA, via Ranzani 1, 40127 Bologna (Italy); phone: +39 051 2095813; fax: +39 051 2095700;

e-mail: stefano.ettori (at) oabo.inaf.it

Prof. Matthias Bartelmann:

Institut fur Theoretische Astrophysik, Albert-Ueberle-Str. 2, 69120 Heidelberg (Germany);

phone: +49-6221-54-4817; fax: +49-6221-54-4221; e-mail: mbartelmann (at) ita.uni-heidelberg.de

Dr. Hakon Dahle:

Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029, Blindern N-0315 Oslo (Norway); phone: +47 22 85 75 31; e-mail: hdahle (at) astro.uio.no

Dr. Henk Hoekstra:

Leiden Observatory, Leiden University, Niels Bohrweg 2, 2333 CA Leiden (The Netherlands);

phone: +31 (0)71 5275594; fax: +31 (0)71 5275743;  e-mail: hoekstra (at) strw.leidenuniv.nl

Dr. Marceau Limousin:

Laboratoire d'Astrophysique de Marseille, UMR6110, CNRS - Universit\'e de Provence, 38 rue Frederic Joliot-Curie, 13388 Marseille Cedex 13 (France); e-mail: marceau.limousin (at) oamp.fr

Dr. Massimo Meneghetti:

INAF/OA, via Ranzani 1, 40127 Bologna (Italy); phone: +39 051 2095815; fax: +39 051 2095700;

e-mail: massimo.meneghetti (at) oabo.inaf.it

Dr. Silvano Molendi:

INAF/IASF, via Bassini 15, I-20133 Milano (Italy); phone: +39 02 23699309;

e-mail: silvano (at) iasf-milano.inaf.it

Dr. Rocco Piffaretti:

CEA Saclay, Service d' Astrophysique, Ormes des Merisiers, 91191 Gif sur Yvette Cedex (France);

phone: +33 1 69 08 91 84; fax: +33 1 69 08 65 77; e-mail: rocco.piffaretti (at) cea.fr

Dr. Etienne Pointecouteau:

Centre d'Etude Spatial des Rayonnements, 9 avenue du colonel Roche, BP 44346, 31028 Toulouse cedex 4

(France); phone: +33 (0)5 61 55 81 89; fax: +33 (0)5 61 55 67 01; e-mail: pointeco (at) cesr.fr

Dr. Thomas Reiprich:

Argelander-Institut fur Astronomie Rheinische Friedrich-Wilhelms-Universitt Bonn, Auf dem H\"ugel 71, D-53121 Bonn (Germany); Phone: +49-228-733642; Fax: +49-228-733543;

e-mail: reiprich (at) astro.uni-bonn.de

Dr. Robert Schmidt:

Astronomisches Rechen-Institut, Zentrum f\"ur Astronomie der Universit\"at Heidelberg,  M\"onchhofstrasse 12-14, 69120 Heidelberg (Germany); phone: +49-6221-541824; fax: +49-6221-541888;

e-mail: rschmidt (at) ari.uni-heidelberg.de

  Young Scientists

Dr. Stefania Giodini (Leiden Observatory)

Dr. Brenda Miranda (Argelander-Institut fur Astronomie Rheinische Friedrich-Wilhelms-Universitt Bonn)

Dr. Holger Israel (Argelander-Institut fur Astronomie Rheinische Friedrich-Wilhelms-Universitt Bonn)

Dr. Annamaria Donnarumma (INAF-Osservatorio Astronomico di Bologna)

Dr. Lorenzo Lovisari (Argelander-Institut fur Astronomie Rheinische Friedrich-Wilhelms-Universitt Bonn)