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A new pulsating white dwarf in the Wide Field Camera?

Published online by Cambridge University Press:  15 February 2018

D. Wonnacott
D. Wonnacott*
Affiliation:
Rutherford Appleton Laboratory, Chilton, Didcot, Oxon., OX11 0QX, UK

Abstract

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Recent observations in the extreme ultraviolet have shown that the binary companion of the pulsating metallic-lined A8m: star IK Peg is a hot DA white dwarf. The EUV light curve is shown to be subject to too much photon noise to identify any periods, and simulations of the effect of a hotspot on the compact object indicate that it is unlikely that the observed photometric variability is not intrinsic to the A8m: star.

Type
Windows on the Instability Strip
Information
International Astronomical Union Colloquium , Volume 139: New Perspectives on Stellar Pulsation and Pulsating Variable Stars , 1993 , pp. 397
Copyright
Copyright © Cambridge University Press 1993

References

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