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astro-ph.CO2009★ 11 cited
Adiabatic versus Isocurvature Non--Gaussianity
Chiaki Hikage, Dipak Munshi, Alan Heavens +1
We study the extent to which one can distinguish primordial non--Gaussianity (NG) arising from adiabatic and isocurvature perturbations. We make a joint analysis of different NG mo…
astro-ph.CO2009★ 21 cited
BOOMERanG Constraints on Primordial Non-Gaussianity from Analytical Minkowski Functionals
P. Natoli, G. De Troia, C. Hikage +32
We use Minkowski Functionals (MF) to constrain a primordial non-Gaussian contribution to the CMB intensity field as observed in the 150 GHz and 145 GHz BOOMERanG maps from the 1998…