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A Century in Period Changes of the Variables in M15
1995
International Astronomical Union Colloquium
Preserved Fulltext
AbstractPeriod behaviour of 62 RR Lyrae stars in the M15 globular cluster has been investigated. About one half of the sample (30 stars) exhibited linear period change. The remaining 32 variables can be characterized by abrupt or erratic changes in their periods.
doi:10.1017/s0252921100037635
fatcat:dxtcto7dmfch5bbtapcsaerf6i