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On Oxygen-Rich Sr Variables In The Solar Neighborhood, Tuncay Özdemi̇r
On Oxygen-Rich Sr Variables In The Solar Neighborhood, Tuncay Özdemi̇r
Turkish Journal of Physics
Brightness distribution of variable stars was investigated based on good Hipparcos parallaxes of semiregular variables (SRVs) in the solar neighborhood, and it is shown that the order of the variability types Lb, SR, SRb, SRa, and Mira is, statistically, an order of increasing brightness along the red giant branch and asymptotic giant branch. In addition, it is also shown that the majority of Miras are above and majority of SRVs are below the tip of the red giant branch. The periods of SRVs that fall in Wood's sequence C (fundamental mode) of large Magellanic clouds were identified. Statistically, the order …