Abstract
Supersoft X-ray sources are commonly believed to be stably burning white dwarfs. However, the observations of some supersoft sources show dramatic variability of their X-ray flux on timescales ranging from days to years. Here, we present further observational data of the supersoft X-ray source RX J0527.8-6954 exhibiting a continuous decline over the past 5 yrs. With no clear trend of a concordant temperature decrease this might suggest a evolutionary scenario where the WD leaves the steady burning branch and the combined effect of reduced luminosity and cooling at constant radius produces the observed effect.
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© 1996 Springer-Verlag
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Greiner, J., Schwarz, R., Hasinger, G., Orio, M. (1996). The long-term X-ray lightcurve of RX J0527.8-6954. In: Greiner, J. (eds) Supersoft X-Ray Sources. Lecture Notes in Physics, vol 472. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0102258
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DOI: https://doi.org/10.1007/BFb0102258
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