Deriving accurate peculiar velocities (even at high redshift)

Davis, Tamara M. and Scrimgeour, Morag I. (2014) Deriving accurate peculiar velocities (even at high redshift). Monthly Notices of the Royal Astronomical Society, 442 2: 1117-1122. doi:10.1093/mnras/stu920


Author Davis, Tamara M.
Scrimgeour, Morag I.
Title Deriving accurate peculiar velocities (even at high redshift)
Journal name Monthly Notices of the Royal Astronomical Society   Check publisher's open access policy
ISSN 0035-8711
1365-2966
Publication date 2014-01-01
Year available 2014
Sub-type Article (original research)
DOI 10.1093/mnras/stu920
Open Access Status DOI
Volume 442
Issue 2
Start page 1117
End page 1122
Total pages 6
Place of publication Oxford, United Kingdom
Publisher Oxford University Press
Collection year 2015
Language eng
Abstract Theway that peculiar velocities are often inferred frommeasurements of distances and redshifts makes an approximation, νp = cz - H0D, that gives significant errors even at relatively low redshifts (overestimates by Δvp ̃ 100 km s-1 at z ̃ 0.04). Here, we demonstrate where the approximation breaks down, the systematic offset it introduces, and how the exact calculation should be implemented.
Keyword Cosmology
Theory
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2015 Collection
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 7 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 8 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 15 Jul 2014, 12:37:47 EST by System User on behalf of School of Mathematics & Physics