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The Pulsation Mode of Polaris
Published online by Cambridge University Press: 12 April 2016
Abstract
Polaris (α UMi) is the only classical Cepheid with Hipparcos parallax determined to better than 10% (Feast & Catchpole 1997). The correct identification of its pulsation mode is therefore crucial for calibrating the Cepheid period–luminosity relation. We show that Polaris is an overtone pulsator. Our analysis confirms the finding of Feast & Catchpole, but is entirely independent of the distance estimation.
- Type
- Part 3. Cepheids, RR Lyrae Stars, Distance Scales
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- Copyright © Astronomical Society of the Pacific 2000
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