Twelve Minute light variations in the peculiar star HD 101065

Wegner, G.

doi:10.1007/3-540-09994-8_43

G. Wegner¹

Part of the book series: Lecture Notes in Physics ((LNP,volume 125))

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Abstract

The magnetic star HD101065 (Przybylski's star) is known for its peculiar spectrum dominated by rare earth lines. Recently, it has been discovered to exhibit periodic 12.141 ± 0.003 min. light variations of amplitude near ± 0.015 mag. in B (Kurtz and Wegner 1979). Several lines of argument suggest an effective temperature near 7400 K, which could relate HD101065 to the δ Scuti instability strip. Such rapid variability is unprecedented in normal, Am and Ap stars. If HD101065 is near the main sequence, the short timescale of variability seems to create a number of problems, not only for pulsation theory, but also for current ideas on the diffusion mechanism of metal enhancement.

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Department of Physics, University of Delaware, Newark, Delaware
G. Wegner

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G. Wegner
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H. A. Hill W. A. Dziembowski

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Wegner, G. (1980). Twelve Minute light variations in the peculiar star HD 101065. In: Hill, H.A., Dziembowski, W.A. (eds) Nonradial and Nonlinear Stellar Pulsation. Lecture Notes in Physics, vol 125. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-09994-8_43

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DOI: https://doi.org/10.1007/3-540-09994-8_43
Published: 25 May 2005
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-09994-9
Online ISBN: 978-3-540-39297-2
eBook Packages: Springer Book Archive

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