NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Galaxy clustering and the origin of large-scale flowsPeebles's 'cosmic virial theorem' is extended from its original range of validity at small separations, where hydrostatic equilibrium holds, to large separations, in which linear gravitational stability theory applies. The rms pairwise velocity difference at separation r is shown to depend on the spatial galaxy correlation function xi(x) only for x less than r. Gravitational instability theory can therefore be tested by comparing the two up to the maximum separation for which both can reliably be determined, and there is no dependence on the poorly known large-scale density and velocity fields. With the expected improvement in the data over the next few years, however, this method should yield a reliable determination of omega.
Document ID
19900029200
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Juszkiewicz, R.
(Polska Akademia Nauk, Centrum Astronomiczne, Warsaw, Poland; Institute for Advanced Study, Princeton NJ, United States)
Yahil, A.
(New York, State University Stony Brook, United States)
Date Acquired
August 14, 2013
Publication Date
November 15, 1989
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters
Volume: 346
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
90A16255
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available