Measuring Bulk Flows in Large Scale Surveys
Astrophysics
2007-05-23 v1
Abstract
We follow a formalism presented by Kaiser to calculate the variance of bulk flows in large scale surveys. We apply the formalism to a mock survey of Abell clusters \'a la Lauer \& Postman and find the variance in the expected bulk velocities in a universe with CDM, MDM and IRAS--QDOT power spectra. We calculate the velocity variance as a function of the 1--D velocity dispersion of the clusters and the size of the survey.
Keywords
Cite
@article{arxiv.astro-ph/9309022,
title = {Measuring Bulk Flows in Large Scale Surveys},
author = {Hume A. Feldman and Richard Watkins},
journal= {arXiv preprint arXiv:astro-ph/9309022},
year = {2007}
}
Comments
9 pages, uuencode compressed postscript file. Proceedings of IAP Colloq 9, "Cosmological Velocity Fields" ed. F Bouchet & M. Lachieze-Rey. UM AC 93-10