HE 0230–4323: An unusual pulsating hot subdwarf star

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Date

2007

Journal Title

Journal ISSN

Volume Title

Publisher

Oxford University Press

Abstract

HE 0230−4323 is a known binary, consisting of a subdwarf star and a companion which is not observable in the optical. Photometric measurements reported in this paper have shown it to be both a reflection-effect and a pulsating variable. The dominant pulsation frequencies changed over the course of several nights of observing, from ∼32–39 d−1 to ∼8–16 d−1. Observations were obtained through B and V filters, and the variations in the two wavebands appear to be approximately 180◦ out of phase.

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Keywords

Statistics studies, Subdwarf star, Binaries, South Africa, Astronomy

Citation

Koen, C. (2007). HE 0230–4323: An unusual pulsating hot subdwarf star. Monthly Notices of the Royal Astronomical Society, 377(3), 1275–1280. https://doi.org/10.1111/j.1365-2966.2007.11684.x