29 July 2010 eROSITA on SRG
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Abstract
eROSITA (extended ROentgen Survey with an Imaging Telescope Array) is the core instrument on the Russian Spektrum-Roentgen-Gamma (SRG) mission which is scheduled for launch in late 2012. eROSITA is fully approved and funded by the German Space Agency DLR and the Max-Planck-Society. The instrument development is in phase C/D since fall 2009. The design driving science is the detection 100.000 Clusters of Galaxies up to redshift z ~1.3 in order to study the large scale structure in the Universe and test cosmological models, especially Dark Energy. This will be accomplished by an all-sky survey lasting for four years plus a phase of pointed observations. eROSITA consists of seven Wolter-I telescope modules, each equipped with 54 Wolter-I shells having an outer diameter of 360 mm. This would provide an effective area of ~1500 cm2 at 1.5 keV and an on axis PSF HEW of 15 arcsec resulting in an effective angular resolution of 28 - 30 arcsec, averaged over the field of view. In the focus of each mirror module, a fast frame-store pn-CCD provides a field of view of 1° in diameter.
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Peter Predehl, Robert Andritschke, Hans Böhringer, Walter Bornemann, Heinrich Bräuninger, Herman Brunner, Marcella Brusa, Wolfgang Burkert, Vadim Burwitz, Nico Cappelluti, Evgeniy Churazov, Konrad Dennerl, Josef Eder, Johannes Elbs, Michael Freyberg, Peter Friedrich, Maria Fürmetz, Roland Gaida, Olaf Hälker, Gisela Hartner, Günther Hasinger, Sven Hermann, Heinrich Huber, Eckhard Kendziorra, Andreas von Kienlin, Walter Kink, Ingo Kreykenbohm, Georg Lamer, Igor Lapchov, K. Lehmann, Norbert Meidinger, Benjamin Mican, Joseph Mohr, Martin Mühlegger, Siegfried Müller, Kirpal Nandra, Mikhail Pavlinsky, Elmar Pfeffermann, Thomas Reiprich, Jan Robrade, Christian Rohé, Andrea Santangelo, Gabriele Schächner, Thomas Schanz, Christian Schmid, Jürgen Schmitt, Reiner Schreib, Fritz Schrey, Axel Schwope, Matthias Steinmetz, Lothar Strüder, Rashid Sunyaev, Chris Tenzer, Lars Tiedemann, Monika Vongehr, Jörn Wilms, "eROSITA on SRG", Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 77320U (29 July 2010); doi: 10.1117/12.856577; https://doi.org/10.1117/12.856577
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