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Non-Gaussian gravitational clustering field statistics
F. S. Kitaura
In this work we investigate the multivariate statistical description of the matter distribution in the nonlinear regime. We introduce the multivariate Edgeworth expansion of the lo…
Multiscale Inference of Matter Fields and Baryon Acoustic Oscillations from the Ly-alpha Forest
Francisco-Shu Kitaura, Simona Gallerani, Andrea Ferrara
We present a novel Bayesian method for the joint reconstruction of cosmological matter density fields, peculiar velocities and power-spectra in the quasi-nonlinear regime. We study…
Cosmic density field reconstruction from Ly-alpha forest data
Simona Gallerani, Francisco-Shu Kitaura, Andrea Ferrara
We present a novel, fast method to recover the density field through the statistics of the transmitted flux in high redshift quasar absorption spectra. The proposed technique requi…
Searching for the earliest galaxies in the 21 cm forest
Yidong Xu, Andrea Ferrara, Francisco S. Kitaura +1
We use a model developed by Xu et al. (2010) to compute the 21 cm line absorption signatures imprinted by star-forming dwarf galaxies (DGs) and starless minihalos (MHs). The method…