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arXiv:astro-ph/9408045 (astro-ph)
[Submitted on 15 Aug 1994]

Title:Bias Minimisation in POTENT

Authors:A. Newsam, J.F.L. Simmons, M.A. Hendry
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Abstract: Much current interest in cosmology has revolved around the peculiar velocity field of galaxies. Many methods have been proposed to derive this, probably the most prominent being POTENT (Dekel et al. 1990). However, this is prone to many forms of systematic error or bias. Here, we examine some of the methods currently used to minimise these biases, particularly Malmquist corrections, and highlight some of their pitfalls. As an alternative we propose an iterative scheme based on Monte Carlo simulations of POTENT that shows noticeable improvement over the other methods considered.
Comments: 11 pages plus 7 pages of figures, uuencoded compressed tared PostScript (2 files), also available via URL this http URL, Accepted for publication by A&A, July 1994. UG-COS-AMN-002
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/9408045
  (or arXiv:astro-ph/9408045v1 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/9408045

Submission history

From: [view email]
[v1] Mon, 15 Aug 1994 12:19:00 UTC (164 KB)
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