HE0230-4323: an unusual pulsating hot subdwarf star

Details HE0230-4323: an unusual pulsating hot subdwarf star HE0230-4323: an unusual pulsating hot subdwarf star

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007mnras.377.1275k&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 377, Issue 3, pp. 1275-1280.

Other

9

Binaries: Close, Stars: Individual: He0230-4323, Stars: Oscillations, Stars: Subdwarfs, Stars: Variables: Other

Scientific paper

HE0230-4323 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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