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Selection Effects and Binary Galaxy Velocity Differences
Published online by Cambridge University Press: 12 April 2016
Extract
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