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Period Change Similarities among the RR Lyrae Variables in Oosterhoff I and Oosterhoff II Globular Systems
Period Change Similarities among RR Lyrae Variables
2011/1/11
We present period change rates (dP/dt) for 42 RR Lyrae variables in the globular cluster IC$\,$4499. Despite clear evidence of these period increases or decreases, the observed period change rates are...
Physical parameters of rr lyrae stars in the globular cluster ngc 5466：the oosterhoff
rr lyrae stars oosterhoff globular cluster ngc 5466
2009/6/25
Physical parameters of rr lyrae stars in the globular cluster ngc 5466：the oosterhoff
dichotomy。