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Rotational Velocities of Evolved A and F Stars*

Published online by Cambridge University Press:  12 April 2016

Sandra M. Faber  and
I. J. Danziger
Sandra M. Faber
Affiliation:
Harvard College Observatory, Cambridge, Mass. and Kitt Peak National Observatory,‡U.S.A.
I. J. Danziger
Affiliation:
Harvard College Observatory, Cambridge, Mass. and Kitt Peak National Observatory,‡U.S.A.

Abstract

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Mean rotational velocities are presented for stars on and above the main sequence from spectral type A5 to F9. The velocities are shown to be inconsistent with the hypothesis of stellar rotation in completely uncoupled shells for stars that have expanded in radius by less than a factor of four. They do, however, support the hypothesis of solid-body rotation for these stars. The data for the giant stars are discussed, but no firm conclusions about the mode of rotation in these stars can be drawn.

Type
Part I / The Effects of Rotation on Stellar Interiors and Evolution
Information
International Astronomical Union Colloquium , Volume 4: Stellar Rotation , 1970 , pp. 39 - 47
Copyright
Copyright © Reidel 1970

Footnotes

†

National Science Foundation Fellow.

‡

Operated by the Association of Universities for Research in Astronomy, Inc., under contract with the National Science Foundation.

*

Contributions from the Kitt Peak National Observatory, No. 491.

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