Detection of local non-Gaussianity with future observations

Details Detection of local non-Gaussianity with future observations Detection of local non-Gaussianity with future observations

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012phlb..706..239l&link_type=abstract

Physics Letters B, Volume 706, Issue 4, p. 239-242.

Physics

Primordial Non-Gaussianity, Simulate, Cmb-Galaxy Cross Correlation

Scientific paper

In this Letter we estimate the primordial non-Gaussianity (PNG) by simulating future observations. We use the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) as an example and focus on the cross correlation signal between the galaxies and the Integrate Sachs-Wolfe (ISW) effect of CMB. Our result is optimistical. It shows the potential of LAMOST, particularly its quasar survey, in probing for the PNG by ISW - galaxy cross correlation. This study is particularly relevant because LAMOST is almost parallel to the timetable of the upcoming high precision Planck satellite.

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