RECONSTRUCTING THE INITIAL DENSITY FIELD OF THE LOCAL UNIVERSE: METHODS AND TESTS WITH MOCK CATALOGS

Our research objective in this paper is to reconstruct an initial linear density field, which follows the multivariate Gaussian distribution with variances given by the linear power spectrum of the current cold dark matter model and evolves through gravitational instabilities to the present-day dens...

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Veröffentlicht in:	The Astrophysical journal 2013-07, Vol.772 (1), p.1-19
Hauptverfasser:	Wang, Huiyuan, Mo, H J, Yang, Xiaohu, VAN DEN BOSCH, FRANK C
Format:	Artikel
Sprache:	eng
Schlagworte:	ACCURACY AMPLITUDES ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Computer simulation CURRENT DENSITY DENSITY Dynamical systems GALAXIES GAUSS FUNCTION GRAVITATIONAL INSTABILITY HAMILTONIANS MANY-BODY PROBLEM MARKOV PROCESS MONTE CARLO METHOD MULTIVARIATE ANALYSIS NONLUMINOUS MATTER Phases PROBABILITY SPECTRA UNIVERSE Wavenumber
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