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Two-Color Observations of RR Lyrae Stars in M14

Published online by Cambridge University Press:  12 April 2016

Amelia Wehlau  and
Nicholas Potts
Nicholas Potts
Affiliation:
University of Western Ontario, London, Canada

Abstract

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Two-color photographic photometry has been carried out on RR Lyrae variables in M14. The position of these variables in the color-magnitude diagram is shown, and it is noted that there is a lack of horizontal branch stars to the red of the variable star gap. Color-amplitude, period-amplitude and color-period relations for the RR Lyrae variables measured are shown.

Type
Part II / RR Lyrae Variables in Population II Systems
Information
International Astronomical Union Colloquium , Volume 21: Variable Stars in Globular Clusters and in Related Systems , August 1973 , pp. 95 - 100
Copyright
Copyright © Reidel 1973

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