The Long-Term X-Ray Lightcurve of RX J0527.8-6954

Details The Long-Term X-Ray Lightcurve of RX J0527.8-6954 The Long-Term X-Ray Lightcurve of RX J0527.8-6954

1996-06-20

arxiv.org/abs/astro-ph/9606131v1

Astronomy and Astrophysics

Astrophysics

8 pages postscript incl. figures, Proc. of Workshop on Supersoft X-Ray Sources, to appear in Lecture Notes in Physics vol. 472

Scientific paper

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 an evolutionary scenario where the white dwarf leaves the steady burning branch and the combined effect of reduced luminosity and cooling at constant radius produces the observed effect. We also use the on-axis ROSAT HRI pointings to derive an improved X-ray position and supply a finding chart for the counterpart search.

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