SIMBAD references

2016MNRAS.455.3169L - Mon. Not. R. Astron. Soc., 455, 3169-3179 (2016/January-3)

Unmasking the masked Universe: the 2M++ catalogue through Bayesian eyes.

LAVAUX G. and JASCHE J.

Abstract (from CDS):

This work describes a full Bayesian analysis of the Nearby Universe as traced by galaxies of the 2M++ survey. The analysis is run in two sequential steps. The first step self-consistently derives the luminosity-dependent galaxy biases, the power spectrum of matter fluctuations and matter density fields within a Gaussian statistic approximation. The second step makes a detailed analysis of the three-dimensional large-scale structures, assuming a fixed bias model and a fixed cosmology. This second step allows for the reconstruction of both the final density field and the initial conditions at z = 1000 assuming a fixed bias model. From these, we derive fields that self-consistently extrapolate the observed large-scale structures. We give two examples of these extrapolation and their utility for the detection of structures: the visibility of the Sloan Great Wall, and the detection and characterization of the Local Void using DIVA, a Lagrangian based technique to classify structures.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): methods: data analysis - methods: statistical - galaxies: statistics - large-scale structure of Universe

Simbad objects: 7

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2019.12.10-11:39:27

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