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Some results of high-speed two-channel photometry of Wolf-Rayet stars with suspected compact companions

Published online by Cambridge University Press:  07 August 2017

B. E. Zhilyaev ,
V. R. Khalack  and
I. A. Verlyuk
B. E. Zhilyaev
Affiliation:
Main Astronomical Observatory, Kiev, AS Ukraine
V. R. Khalack
Affiliation:
Main Astronomical Observatory, Kiev, AS Ukraine
I. A. Verlyuk
Affiliation:
Main Astronomical Observatory, Kiev, AS Ukraine

Abstract

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Strong transient chaotic high-frequency activity has been detected in WR148 on a time scale of a few minutes. The main property is the variability of the fluctuation power, not the light-curve. The same is true for WR136 but with a more permanent pattern. The power of fluctuations is of order of thousandth relative to the steady intensity. The maximum fluctuation power lies in the frequency band of 25–50 Hz.

Keywords

stars: Wolf-Rayetflickeringneutron starsblack holes
Type
Session VIII - Hydrodynamics and high-energy physics of winds accreting on neutrons stars and black holes
Information
Symposium - International Astronomical Union , Volume 163: Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution , 1995 , pp. 550 - 553
Copyright
Copyright © Kluwer 1995 

References

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Zhilyaev, B.E., Romaniuk, Ya.O., Svyatogorov, O.A. 1992, Sov. Astron. 69, 895 Google Scholar