Visualization of structures and cosmic flows in the Local Universe
  A visualization of three-dimensional structures and cosmic flows is presented
using information from the Extragalactic Distance Database V8k redshift catalog
and peculiar velocities from the Cosmicflows-1 survey. Structures within a
volume bounded at 8000 km/s on the cardinal Supergalactic axes are explored in
terms of both the display of the positions of the 30124 galaxies of the catalog
and its reconstructed luminosity density field, corrected to account for
growing incompleteness with distance. Cosmography of the Local Universe is
discussed with the intent to identify the most prominent structures, including
voids, galaxy clusters, filaments and walls. The mapping also benefits from
precise distance measures provided through the Cosmicflows-1 observational
program. Three-dimensional visualizations of the coherent flows of galaxies in
the nearby universe are presented using recent results obtained on the
reconstruction of cosmic flows with the Wiener Filter approach. The three major
components of the Milky Way motion, namely the expulsion from the Local Void,
the infall toward the Virgo Cluster, and the bulk flow of the historic Local
Supercluster toward the Great Attractor are illustrated using different
visualization techniques and analyzed in the light of the cosmography derived
from the V8k redshift and Cosmicflows-1 distance catalogs.
