Speaker: Daisuke Yamauchi

Title: ``Constraining non-Gaussianity with multi-tracer technique"

We evaluate accuracy on nonlinear parameter with SKA continuum and Euclid
surveys via multi-tracer technique. Performing a Fisher matrix analysis,
we show that the availability of multiple biased tracers drastically improves
measurement of nonlinear parameter. When we split whole samples into 5
subsamples, we obtain the constraint of \sigma(f_{NL})<O(1).

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Last-modified: 2014-06-10 (火) 19:15:21 (2507d)