Mapping the Universe

  title={Mapping the Universe},
  author={Margaret J. Geller and John Peter Huchra},
  pages={897 - 903}
Maps of the galaxy distribution in the nearby universe reveal large coherent structures. The extent of the largest features is limited only by the size of the survey. Voids with a density typically 20 percent of the mean and with diameters of 5000 km s-1 are present in every survey large enough to contain them. Many galaxies lie in thin sheet-like structures. The largest sheet detected so far is the "Great Wall" with a minimum extent of 60 h-1 Mpc x 170 h-1 Mpc, where h is the Hubble constant… 

Mapping the Large-Scale Structure

The nearby galaxy distribution suggests a remarkable structure in which large voids are delineated by dense walls of galaxies in a cell-like pattern. The nearby voids range in diameter from ∼ 10 to ∼

A Map of the Universe

We have produced a new conformal map of the universe illustrating recent discoveries, ranging from Kuiper Belt objects in the solar system to the galaxies and quasars from the Sloan Digital Sky

Clusters of galaxies as probes for the large scale structure

The large efforts that are presently undertaken in optical redshift surveys and X-ray surveys of clusters of galaxies will make them increasingly important tracers for the study of the large scale

The Large-Scale Structure of the Universe

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The density field of the local Universe

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The complex universe: recent observations and theoretical challenges

The large-scale distribution of galaxies in the universe displays a complex pattern of clusters, super-clusters, filaments and voids with sizes limited only by the boundaries of the available

Mapping the Galaxy Distribution at Large Distances

We present the first results of the ESO-Sculptor Faint Galaxy Redshift Survey designed to study the large-scale galaxy distribution at large distances in the direction of the southern Galactic pole.


Large galaxy redshift surveys have long been used to constrain cosmological models and structure formation scenarios. In particular, the largest structures discovered observationally are thought to

Galaxy Motions in The Nearby Universe

In this paper we review the history of the search for and study of the motions of nearby galaxies with respect to the Hubble Flow. The current status of the field is that (1) convincing infall has

So Many Galaxies, So Little Time

Over the last decade and a half, significant advances have been made in our understanding of the “structure” of the nearby universe. These have come both from redshift surveys of galaxies and



A Slice of the Universe

A preliminary discussion is presented of recent results obtained as part of the extension of the Center of Astrophysics redshift survey. Several features of the results are striking. The distribution

The spatial distribution of dwarf galaxies in the CfA slice of the universe

A complete (with the the exception of one) redshift sample of 58 galaxies in the Nilson catalog classified as dwarf, irregular, or Magellanic irregular is used to investigate the large-scale

Clusters, filaments, and voids in a universe dominated by cold dark matter

The behavior of a flat, cold dark matter universe is investigated on scales larger than 10 Mpc using a model in which galaxies are required to form only near high peaks of the smoothed linear density

The supergalactic plane redshift survey - A candidate for the great attractor

Redshift measurements, nearly 600 of which are new, are compiled for about 900 galaxies in a survey toward the apex of the large-scale streaming flow for ellipticals. The velocity histogram shows

The area of isodensity contours in cosmological models and galaxy surveys

The contour crossing statistic, defined as the mean number of times per unit length that a straight line drawn through the field crosses a given contour, is applied to model density fields and to

Emission-line galaxies in the Slice of the Universe

The relative spatial distributions of emission-line galaxies (ELGs) and normal galaxies that lie in the sky area covered by the 'Slice' survey (de Lapparent et al., 1986) are considered. ELGs follow

The peculiar velocity field in the local supercluster

A general method of estimating the peculiar velocity field expected, under the gravitational instability picture, around the outer parts of a mass concentration like a cluster of galaxies is derived

A Case Study of Large Scale Structure in a

Large-scale structure is studied in an Omega(0) = 1 model universe filled with 'hot' dark matter. A particle mesh computer code is used to calculate the development of gravitational instabilities in

Statistics of voids in hierarchical universes

As one alternative to the N-point galaxy correlation function statistics, the distribution of holes or the probability that a volume of given size and shape be empty of galaxies can be considered.

Evidence for Local Anisotropy of the Hubble Flow

The Universe is accurately isotropic when measured by radio source counts and deep galaxy counts, or by the integrated microwave and X-ray backgrounds. On the other hand, galaxies are distributed in