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The Kinematics of the Local Supercluster

Published online by Cambridge University Press:  04 August 2017

J. R. Mould ,
P. L. Schechter ,
M. Aaronson ,
R. B. Tully  and
J. P. Huchra
J. R. Mould
Affiliation:
Kitt Peak National Observatory*
P. L. Schechter
Affiliation:
Kitt Peak National Observatory*
M. Aaronson
Affiliation:
Steward Observatory, University of Arizona
R. B. Tully
Affiliation:
Institute for Astronomy, University of Hawaii
J. P. Huchra
Affiliation:
Center for Astrophysics

Extract

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The spatial distribution of galaxies in the Local Supercluster, as described at this meeting, together with the measured anisotropy in the microwave background suggest that there exist significant deviations from a uniform Hubble flow in the velocity field of galaxies within a few thousand km/s. In principle, it is not too hard to improve on the uniform flow model: one simply needs to examine the spatial distribution of the radial velocity residuals for many nearby galaxies. In practice, the problem is non-trivial because of the coupling of velocity and distance, and the lack of a distance indicator of high precision, and the “thermal” noise in the velocity field. Our recent efforts in this direction are described in more detail in a paper in a current Astrophysical Journal (Aaronson et al. 1982a).

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 104: Early Evolution of the Universe and Its Present Structure , 1983 , pp. 241 - 247
Copyright
Copyright © Reidel 1983 

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