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  The eROSITA X-ray telescope on SRG

Predehl, P., Andritschke, R., Arefiev, V., Babyshkin, V., Batanov, O., Becker, W., et al. (2021). The eROSITA X-ray telescope on SRG. Astronomy and Astrophysics, 647: A1. doi:10.1051/0004-6361/202039313.

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Predehl, P.1, Author              
Andritschke, R.1, Author              
Arefiev, V., Author
Babyshkin, V., Author
Batanov, O., Author
Becker, W.1, Author              
Böhringer, H.1, Author              
Bogomolov, A., Author
Boller, T.2, Author              
Borm, K., Author
Bornemann, W.1, Author              
Bräuninger, H.1, Author              
Brüggen, M., Author
Brunner, H.1, Author              
Brusa, M., Author
Bulbul, E.1, Author              
Buntov, M., Author
Burwitz, V.1, Author              
Burkert, W.1, Author              
Clerc, N., Author
Churazov, E., AuthorCoutinho, D.3, Author              Dauser, T., AuthorDennerl, K.1, Author              Doroshenko, V., AuthorEder, J.1, Author              Emberger, V.1, Author              Eraerds, T.1, Author              Finoguenov, A.1, Author              Freyberg, M.1, Author              Friedrich, P.1, Author              Friedrich, S.4, Author              Fürmetz, M.1, Author              Georgakakis, A., AuthorGilfanov, M., AuthorGranato, S.1, Author              Grossberger, C.1, Author              Gueguen, A.1, Author              Gureev, P., AuthorHaberl, F.1, Author              Hälker, O.1, Author              Hartner, G.1, Author              Hasinger, G., AuthorHuber, H.1, Author              Ji, L., AuthorKienlin, A. v.1, Author              Kink, W.1, Author              Korotkov, F., AuthorKreykenbohm, I., AuthorLamer, G., AuthorLomakin, I., AuthorLapshov, I., AuthorLiu, T.1, Author              Maitra, C.1, Author              Meidinger, N.1, Author              Menz, B.1, Author              Merloni, A.1, Author              Mernik, T., AuthorMican, B.1, Author              Mohr, J., AuthorMüller, S.1, Author              Nandra, K.1, Author              Nazarov, V., AuthorPacaud, F., AuthorPavlinsky, M., AuthorPerinati, E., AuthorPfeffermann, E.1, Author              Pietschner, D.1, Author              Ramos-Ceja, M. E.1, Author              Rau, A.1, Author              Reiffers, J.1, Author              Reiprich, T. H., AuthorRobrade, J., AuthorSalvato, M.1, Author              Sanders, J.1, Author              Santangelo, A., AuthorSasaki, M., AuthorScheuerle, H., AuthorSchmid, C., AuthorSchmitt, J., AuthorSchwope, A., AuthorShirshakov, A., AuthorSteinmetz, M., AuthorStewart, I.1, Author              Strüder, L.1, Author              Sunyaev, R., AuthorTenzer, C., AuthorTiedemann, L.1, Author              Trümper, J.1, Author              Voron, V., AuthorWeber, P., AuthorWilms, J., AuthorYaroshenko, V., Author more..
Affiliations:
1High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society, ou_159890              
2Center for Astrochemical Studies at MPE, MPI for Extraterrestrial Physics, Max Planck Society, ou_1950287              
3MPI for Extraterrestrial Physics, Max Planck Society, ou_159888              
4Infrared and Submillimeter Astronomy, MPI for Extraterrestrial Physics, Max Planck Society, ou_159889              

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 Abstract: eROSITA (extended ROentgen Survey with an Imaging Telescope Array) is the primary instrument on the Spectrum-Roentgen-Gamma (SRG) mission, which was successfully launched on July 13, 2019, from the Baikonour cosmodrome. After the commissioning of the instrument and a subsequent calibration and performance verification phase, eROSITA started a survey of the entire sky on December 13, 2019. By the end of 2023, eight complete scans of the celestial sphere will have been performed, each lasting six months. At the end of this program, the eROSITA all-sky survey in the soft X-ray band (0.2–2.3 keV) will be about 25 times more sensitive than the ROSAT All-Sky Survey, while in the hard band (2.3–8 keV) it will provide the first ever true imaging survey of the sky. The eROSITA design driving science is the detection of large samples of galaxy clusters up to redshifts z > 1 in order to study the large-scale structure of the universe and test cosmological models including Dark Energy. In addition, eROSITA is expected to yield a sample of a few million AGNs, including obscured objects, revolutionizing our view of the evolution of supermassive black holes. The survey will also provide new insights into a wide range of astrophysical phenomena, including X-ray binaries, active stars, and diffuse emission within the Galaxy. Results from early observations, some of which are presented here, confirm that the performance of the instrument is able to fulfil its scientific promise. With this paper, we aim to give a concise description of the instrument, its performance as measured on ground, its operation in space, and also the first results from in-orbit measurements.

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 Dates: 2021-02-26
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1051/0004-6361/202039313
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Title: Astronomy and Astrophysics
  Other : Astron. Astrophys.
Source Genre: Journal
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Publ. Info: France : EDP Sciences S A
Pages: - Volume / Issue: 647 Sequence Number: A1 Start / End Page: - Identifier: ISSN: 1432-0746
CoNE: https://pure.mpg.de/cone/journals/resource/954922828219_1