Optical studies of the X - ray transient XTE J 2123 - 058 - I .


We present optical photometry of the X-ray transient XTE J2123–058, obtained in July–October 1998. The light curves are strongly modulated on the 5.95hrs orbital period, and exhibit dramatic changes in amplitude and form during the decline. We used synthetic models which include the effect of partial eclipses and X-ray heating effects, to estimate the… (More)


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