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Selection Effects and Binary Galaxy Velocity Differences

Published online by Cambridge University Press:  12 April 2016

Stephen E. Schneider  and
Edwin E. Salpeter
Stephen E. Schneider
Affiliation:
University of Massachusetts
Edwin E. Salpeter
Affiliation:
University of Massachusetts

Extract

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Measurements of the velocity differences (Δυ’s) in pairs of galaxies from large statistical samples have often been used to estimate the average masses of binary galaxies. A basic prediction of these models is that the Δυ distribution ought to decline monotonically. However, some peculiar aspects of the kinematics have been uncovered, with an anomalous preference for Δυ ≈ 72 km s-1 appearing to be present in the data.

Type
VI. Redshift Related Problems
Information
International Astronomical Union Colloquium , Volume 124: Paired and Interacting Galaxies , 1990 , pp. 485 - 490
Copyright
Copyright © NASA 1990

References

Newman, W. I., Haynes, M. P., and Terzian, Y. 1989, Ap. J., 344 111.Google Scholar
Schneider, S. E., and Salpeter, E. E. (1990) in preparation.Google Scholar
Tifft, W. G. 1980, Ap. J., 236 70.Google Scholar
Tifft, W. G., and Cocke, W. J. 1989, Ap. J., 336 128.Google Scholar