Statistics – Computation
Scientific paper
May 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...372..394d&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 372, May 10, 1991, p. 394-409. Research supported by NSF and NASA.
Statistics
Computation
37
Astronomical Models, Density Distribution, Infrared Astronomy, Local Group (Astronomy), Many Body Problem, Red Shift, Universe, Computational Astrophysics, Dark Matter, Infrared Astronomy Satellite, Sky Surveys (Astronomy), Spatial Distribution, Velocity Distribution
Scientific paper
N-body simulations of a 'cold dark matter' universe are presently used to calibrate the accuracy, and assess the limitations, of the procedure previously employed to predict the velocity field within 8000 km/sec of the Local Group through the application of linear gravitational theory to a full-sky, flux-limited sample of IRAS galaxies. The rms difference between the one-dimensional acceleration and velocity of field particles is an increasing function of local density; linear theory can in this way account for all but one-sixth of kinetic energy. A series of artificial IRAS catalogs closely matching the real sample in space density and clustering amplitude is constructed. Velocity correlation functions are used to demonstrate that the predicted velocity fields are in good agreement with the true velocity fields on large scales.
Davis Martin
Strauss Michael A.
Yahil Amos
No associations
LandOfFree
A redshift survey of IRAS galaxies. III - Reconstruction of the velocity and density fields in N-body model universes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A redshift survey of IRAS galaxies. III - Reconstruction of the velocity and density fields in N-body model universes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A redshift survey of IRAS galaxies. III - Reconstruction of the velocity and density fields in N-body model universes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1036502