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The Double-Mode Cepheid V371 Persei Redux

E. G. Schmidt
Publications of the Astronomical Society of the Pacific
Vol. 123, No. 902 (April 2011), pp. 381-383
DOI: 10.1086/659148
Stable URL: http://www.jstor.org/stable/10.1086/659148
Page Count: 3
Subjects: Astronomy
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The Double-Mode Cepheid V371 Persei Redux
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Abstract

ABSTRACT. A metallicity of [Fe/H] = -0.05 [ Fe / H ] = - 0.05 to -0.40 - 0.40 was derived from four spectra of the peculiar beat Cepheid V371 Per. This conflicts with previous estimates ranging from -0.7 - 0.7 to -1.0 - 1.0 based on the period ratio. It is suggested that the discrepancy may be resolved by assuming near solar metallicity but a low mass. This is in accord with a suggestion by Sandage and Tammann that the AHB3 (or BL Her) stars are Population I analogs of short-period type II Cepheids. Further pulsational modeling is needed to clarify the status of this star and to understand the AHB3 stars.

Notes and References

This item contains 18 references.

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