EROSITA on SRG

Peter Predehl, Roland Andritschke, Hans Böhringer, Walter Bornemann, Heinrich Bräuninger, Hermann 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 HartnerGünther Hasinger, Sven Herrmann, 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, Rainer Schreib, Fritz Schrey, Axel Schwope, Matthias Steinmetz, Lothar Strüder, Rashid Sunyaev, Chris Tenzer, Lars Tiedemann, Monika Vongehr, Jörn Wilms

Research output: Chapter in Book/Report/Conference proceedingConference contribution

82 Scopus citations

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 cm 2 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 framestore pn-CCD provides a field of view of 1° in diameter.

Original languageEnglish (US)
Title of host publicationSpace Telescopes and Instrumentation 2010
Subtitle of host publicationUltraviolet to Gamma Ray
PublisherSPIE
ISBN (Print)9780819482228
DOIs
StatePublished - 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7732
ISSN (Print)0277-786X

Keywords

  • All-sky survey
  • Dark Energy
  • X-ray telescopes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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