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A New Program to Determine K(z) from Main Sequence Stars

Published online by Cambridge University Press:  30 March 2016

A. R. Upgren
A. R. Upgren*
Affiliation:
Van Vleck Observatory, Wesleyan Univ., Middletown, Conn

Extract

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Recently Dessureau and Upgren (1975) redetermined the velocity distribution of giant stars in the north galactic pole direction using Upgren’s (1962) catalogue and Oort’s (1960) determination of K(z). The velocities were assumed to be represented by n Gaussian distributions with no further constraints imposed. The velocities are well represented by three such distributions whose properties disagree with those found by Oort. A larger number did not improve the stability of the solution. Without radial velocities, however, they could not redetermine the K(z) force itself.

Type
Joint Discussions
Information
Highlights of Astronomy , Volume 4 , Issue 2: Highlights of Astronomy. As presented at the XVIth General Assembly of the IAU, 1976 (Part II) , 1977 , pp. 75 - 76
Copyright
Copyright © Reidel 1977

References

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