NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 12 of 172
Galaxy clustering and the origin of large-scale flows
External Online Source: doi:10.1086/185576
Author and Affiliation:
Juszkiewicz, R.(Polska Akademia Nauk, Centrum Astronomiczne, Warsaw, Poland, Institute for Advanced Study, Princeton)
Yahil, A.(New York, State University, Stony Brook, United States)
Abstract: Peebles'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.
Publication Date: Nov 15, 1989
Document ID:
19900029200
(Acquired Nov 28, 1995)
Accession Number: 90A16255
Subject Category: ASTROPHYSICS
Document Type: Journal Article
Publication Information: Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X); 346; L49-L51
Publisher Information: United States
Organization Source: Polish Academy of Sciences; Warsaw, Poland
Institute for Advanced Study; Princeton, NJ, United States
State Univ. of New York; Stony Brook, NY, United States
Description: 3p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: COSMOLOGY; GALACTIC CLUSTERS; GRAVITATIONAL EFFECTS; UNIVERSE; COMPUTATIONAL ASTROPHYSICS; ELLIPTICAL GALAXIES; PERTURBATION THEORY; SPATIAL DISTRIBUTION; SPIRAL GALAXIES; VELOCITY DISTRIBUTION
Imprint And Other Notes: Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 346, Nov. 15, 1989, p. L49-L51. Research supported by NASA and New Jersey High Technology Grant.
Miscellaneous Notes: Research supported by NASA and New Jersey High Technology Grant
Availability Source: Other Sources
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: August 18, 2011
Contact Us