11 July 2016 Athena Wide Field Imager key science drivers
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The Wide Field Imager (WFI) is one of two instruments for the Advanced Telescope for High-ENergy Astrophysics (Athena). In this paper we summarise three of the many key science objectives for the WFI { the formation and growth of supermassive black holes, non-gravitational heating in clusters of galaxies, and spin measurements of stellar mass black holes { and describe their translation into the science requirements and ultimately instrument requirements. The WFI will be designed to provide excellent point source sensitivity and grasp for performing wide area surveys, surface brightness sensitivity, survey power, and absolute temperature and density calibration for in-depth studies of the outskirts of nearby clusters of galaxies and very good high-count rate capability, throughput, and low pile-up, paired with very good spectral resolution, for detailed explorations of bright Galactic compact objects.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Arne Rau, Arne Rau, Kirpal Nandra, Kirpal Nandra, James Aird, James Aird, Andrea Comastri, Andrea Comastri, Thomas Dauser, Thomas Dauser, Andrea Merloni, Andrea Merloni, Gabriel W. Pratt, Gabriel W. Pratt, Thomas H. Reiprich, Thomas H. Reiprich, Andy C. Fabian, Andy C. Fabian, Antonis Georgakakis, Antonis Georgakakis, Manuel Güdel, Manuel Güdel, Agata Różańska, Agata Różańska, Jeremy S. Sanders, Jeremy S. Sanders, Manami Sasaki, Manami Sasaki, Simon Vaughan, Simon Vaughan, Jörn Wilms, Jörn Wilms, Norbert Meidinger, Norbert Meidinger, } "Athena Wide Field Imager key science drivers", Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 99052B (11 July 2016); doi: 10.1117/12.2235268; https://doi.org/10.1117/12.2235268


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