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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 3 CONTRIBUTI IN ATTI DI CONVEGNO (Proceedings)
  4. 3.01 Contributi in Atti di convegno
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/23769
Title: A trade-off study of the WFI field of view
Authors: Vito, Fabio
LANZUISI, Giorgio 
COMASTRI, Andrea 
Athena SWG2. 1
Issue Date: 2015
Volume: Exploring the Hot and Energetic Universe: The first scientific conference dedicated to the Athena X-ray observatory
First Page: 48
Abstract: We performed a trade-off study of the Athena WFI field of view (f.o.v.) taking into account a square and a circular f.o.v. In the latter case, the WFI corners would not be exposed to cosmic X-rays and could be used as particle background monitors, simultaneously to the observation. The resulting loss of area would concern only regions of low sensitivity. So, how many and which kind of AGN would be lost? In this poster we report some results derived from simple computations; for both of the two f.o.v. shapes, we folded the Aird+10 XLF with the Athena sky-coverage (assuming the CDF2 configuration and Gamma=1.8) of a deep (700 ks) pointing to derive the number of detectable AGN. Although the absolute numbers are affected by huge uncertainties, the relative numbers (i.e. the fraction of AGN retrieved with the circular f.o.v. with respect to the square f.o.v.) depend only on the different sky-coverages and are therefore much more robust. <P />
Conference Name: Exploring the Hot and Energetic Universe: The first scientific conference dedicated to the Athena X-ray observatory.
Conference Place: ESA/ESAC, Villafranca del Castillo, Madrid, Spain
Conference Date: 8-10 September 2015
URI: http://hdl.handle.net/20.500.12386/23769
URL: https://www.cosmos.esa.int/web/conferences-archive/athena-2015
https://www.cosmos.esa.int/documents/946106/1024226/FVito_p.pdf/
Bibcode ADS: 2015eheu.conf...48V
Fulltext: open
Appears in Collections:3.01 Contributi in Atti di convegno

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