Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ The Astrophysical Jo...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
The Astrophysical Journal
Article . 1981 . Peer-reviewed
Data sources: Crossref
versions View all 1 versions
addClaim

This Research product is the result of merged Research products in OpenAIRE.

You have already added 0 works in your ORCID record related to the merged Research product.

The velocity dispersion among galaxies

Authors: A. R. Rivolo; A. Yahil;

The velocity dispersion among galaxies

Abstract

The galaxies in the Revised Shapley-Ames redshift catalog, which is complete to Broughly-equal13, are used to determine the velocity dispersion in the local galaxy field (..nu..<4000 km s/sup -1/). By studying the velocity differences of neighboring pairs of galaxies, we find for the one dimensional velocity dispersion per galaxy sigma = 70 +- 10 km s/sup -1/. (For the three dimensional dispersion, multiply by 3/sup 1/2/; and for the rms velocity difference between pairs, multiply by 2/sup 1/2/.) This velocity dispersion is found in pairs of galaxies irrespective of how isolated they are, and whether or not they are each other's nearest neighbors. The interpretation of isolated galaxy pairs as binaries, whose dynamics is dominated by the two-body force, is therefore questioned. Various implications of the derived velocity dispersion are discussed, with particular attention given to its significance in the virialization process occurring in the cores of the great clusters of galaxies.

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    12
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
12
Average
Average
Average
gold