Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'500'096
Articles rated: 2609

18 April 2024

» arxiv » astro-ph/9909190

Article overview

Density and Velocity Fields from the PSCz Survey
Will Saunders ; Enzo Branchini ; Luis Teodoro ; Alan Heavens ; Andy Taylor ; Helen Valentine ; Kenton D’Mellow ; Seb Oliver ; Oliver Keeble ; Michael Rowan-Robinson ; Jacob Sharpe ; Steve Maddox ; Richard McMahon ; George Efstathiou ; Will Sutherland ; Helen Tadros ; Bill Ballinger ; Inga Schmolt ; Carlos Frenk ; Simon White ;
Date:	10 Sep 1999
Subject:	astro-ph
Abstract:	We present the results for the predicted density and peculiar velocity fields and the dipole from the PSCz survey of 15,000 IRAS galaxies over 84% of the sky. We find a significant component to the dipole arising between 6000 and 15,000 km/s, but no significant component from greater distances. The misalignment with the CMB is 20 degrees. The most remarkable feature of the PSCz model velocity field is a coherent large-scale flow along the baseline connecting Perseus-Pisces, the Local Supercluster, Great Attractor and the Shapley Concentration. We have measured the parameter beta using the amplitude of the dipole, bulk flow and point by point comparisons between the individual velocities of galaxies in the MarkIII and SFI datasets, and the large-scale clustering distortion in redshift space.All our results are consistent with beta = 0.6 +- 0.1.
Source:	arXiv, astro-ph/9909190
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser claudebot

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap