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Distances and Radii of Classical Cepheids

Published online by Cambridge University Press:  12 April 2016

T. G. Barnes III  and
T. J. Moffett
T. G. Barnes III
Affiliation:
The University of Texas at Austin, Austin, Texas 78712 USA
T. J. Moffett
Affiliation:
Purdue University, West Lafayette, Indiana 47907 USA

Extract

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We have used new BVRI photometry and radial velocities of a selection of bright classical Cepheids to determine their distances and radii through the surface brightness method. The improved photometry permitted, through the visual surface brightness relation, high-quality angular-diameter values for each Cepheid throughout its pulsation. The simultaneous radial velocities permitted the linear displacement curve to be phase-locked to the angular diameter variation. The results are individual distances and radii with considerably smaller uncertainty than could be obtained previously.

Type
Part I. Fundamental Parameters
Information
International Astronomical Union Colloquium , Volume 82: Cepheids: Theory and Observations , 1985 , pp. 53 - 55
Copyright
Copyright © Cambridge University Press 1985

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