The eROSITA X-ray telescope on SRG

By P. Predehl, R. Andritschke, V. Arefiev, V. Babyshkin, O. Batanov, W. Becker, H. Böhringer, A. Bogomolov, T. Boller, K. Borm and 83 more. Astronomy & Astrophysics, 2020

428 citations recorded by the source corpus.

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 redshiftsz> 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.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/97ffff723027cb9aa709187c0bcc28762f58d26d

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Citations in the corpus

The SRG/eROSITA all-sky survey (2024, positive): “In this section, we provide a compact summary of the main technical characteristics of eROSITA and its calibration; more details, including a summary of the on-ground calibration, can be found in Predehl et al. (2021).”
The Eighteenth Data Release of the Sloan Digital Sky Surveys: Targeting and First Spectra from SDSS-V (2023, background): “BHM (Section 7) is studying the physics of black hole growth through time-domain spectroscopy and is providing spectra for extragalactic X-ray-luminous sources from eROSITA (Merloni et al. 2012; Predehl et al. 2021), using optical spectra across the sky.”
Modules for Experiments in Stellar Astrophysics (MESA): Time-dependent Convection, Energy Conservation, Automatic Differentiation, and Infrastructure (2022, background): “…the Imaging X-ray Polarimetry Explorer (Soffitta et al. 2021), the Compton Spectrometer and Imager (Tomsick & COSI Collaboration 2022), eROSITA (Predehl et al. 2021), Gaia (Gaia Collaboration et al. 2016, 2018, 2021), the Sloan Digital Sky Survey (York et al. 2000; Abdurro’uf et al. 2022), the…”