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On the Changes of Periods of RR Lyrae Variables in the Globular Clusters M5, M53 and NGC 5053

Published online by Cambridge University Press:  12 April 2016

V. P. Goranskij ,
B. V. Kukarkin  and
N. N. Samus’
V. P. Goranskij
Affiliation:
Moscow University, Moscow, U.S.S.R.
B. V. Kukarkin
Affiliation:
Moscow University, Moscow, U.S.S.R.
N. N. Samus’
Affiliation:
Moscow University, Moscow, U.S.S.R.

Extract

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The period of a variable star is very sensitive to extremely minor changes in luminosity, mass, radius, surface temperature, etc. of the star. With new theoretical calculations of the interior structure of stars in the late stages of evolution now available, the investigation of instabilities in the periods of the RR Lyrae variables in globular clusters becomes urgent.

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. 101 - 103
Copyright
Copyright © Reidel 1973

References

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