Letter | Published:

Maintenance of the Pulsation in Cepheid Variables

Naturevolume 140page195 (1937) | Download Citation

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Abstract

THE oscillations induced in the principal modes of vibration of a star by a free oscillation in one of them, generally of the second order in the corresponding free amplitude, are unimportant unless magnified by resonance ; so seems the evidence from Miss H. A. Kluyver's analysis1. Hence, the motion in a Cepheid variable may be closely approximated to by the superposition of the oscillations of two modes of vibration, a free one and a forced one with half the period.

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References

  1. 1

    Bulletin of the Astronomical Institute of the Netherlands, 276.

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  1. University of Leyden

    • J. WOLTJER JUN.

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https://doi.org/10.1038/140195a0

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