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A new X-ray mission to measure the power spectrum of fluctuations in the Universe | | X. Barcons
; A.C. Fabian
; | | Date: |
10 Nov 1997 | | Subject: | astro-ph | | Affiliation: | IFCA Santander Spain), A.C. Fabian (IoA Cambridge UK | | Abstract: | We propose a new, simple, dedicated X-ray mission to measure the power spectrum of density fluctuations in the Universe, by accurately mapping the X-ray background on the whole sky on scales of arounf one sq deg. Since the method relies on the detection of excess fluctuations produced by the clustering of X-ray sources at intermediate redshifts above the confusion noise produced by bright foreground sources, counting noise and systematic noise need to be kept to a minimum. We propose a proportional counter with collimated fields of view of various sizes as the optimal instrument for this mission. | | Source: | arXiv, astro-ph/9711084 | | Services: | Forum | Review | PDF | Favorites | |
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