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Conference Paper

The calibration of eROSITA on SRG

MPS-Authors
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Dennerl,  Konrad
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

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Andritschke,  Robert
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons4839

Braeuninger,  Heinrich
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons4843

Burkert,  Wolfgang
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons4784

Burwitz,  Vadim
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

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Emberger,  Valentin
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

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Freyberg,  Michael
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons4825

Friedrich,  Peter
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons4857

Gaida,  Roland
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons49434

Granato,  Stefanie
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons4861

Hartner,  Gisela
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons4630

Kienlin,  Andreas von
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

/persons/resource/persons4869

Meidinger,  Norbert
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

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Menz,  Benedikt
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

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Predehl,  Peter
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

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Citation

Dennerl, K., Andritschke, R., Braeuninger, H., Burkert, W., Burwitz, V., Emberger, V., et al. (2020). The calibration of eROSITA on SRG. In Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray. doi:10.1117/12.2562330.


Cite as: https://hdl.handle.net/21.11116/0000-0009-47C2-C
Abstract
The power of eROSITA (extended ROentgen Survey with an Imaging Telescope Array), the core instrument on the Russian–German Spectrum–Roentgen–Gamma (SRG) mission, is high sensitivity at high spectral, spatial, and temporal resolution over a large field of view. This is achieved by combining 7 coaligned X–ray telescope modules, each composed of 54 paraboloid / hyperboloid mirror shells in a Wolter–I geometry, to focus the X–rays through optical blocking filters onto PNCCDs with a total of 1 million pixels, providing a spectral resolution of 60 – 160 eV FWHM over an energy range 0.2 – 8 keV and a 1 degree field of view at a time resolution of 50 ms. In order to make full scientific use of the unique capabilities of eROSITA, all the individual components have to be calibrated. The initial ground calibration was done at the PANTER and PUMA facilities of MPE as well as at BESSY, and was supplemented by an in–orbit calibration. We report on the extensive and often challenging calibration activities performed on ground and in space.