Cosmography of the Local Universe
  The large scale structure of the universe is a complex web of clusters,
filaments, and voids. Its properties are informed by galaxy redshift surveys
and measurements of peculiar velocities. Wiener Filter reconstructions recover
three-dimensional velocity and total density fields. The richness of the
elements of our neighborhood are revealed with sophisticated visualization
tools. A key component of this paper is an accompanying movie that can be
viewed and downloaded at : http://irfu.cea.fr/cosmography or
http://vimeo.com/pomarede/cosmography .The ability to translate and zoom helps
the viewer follow structures in three dimensions and grasp the relationships
between features on different scales while retaining a sense of orientation.
The ability to dissolve between scenes provides a technique for comparing
different information, for example, the observed distribution of galaxies,
smoothed representations of the distribution accounting for selection effects,
observed peculiar velocities, smoothed and modeled representations of those
velocities, and inferred underlying density fields. The agreement between the
large scale structure seen in redshift surveys and that inferred from
reconstructions based on the radial peculiar velocities of galaxies strongly
supports the standard model of cosmology where structure forms from
gravitational instabilities and galaxies form at the bottom of potential wells.
