Optical studies of the X-ray transient XTE J2123-058 -- I. Photometry
Optical studies of the X-ray transient XTE J2123-058 -- I. Photometry
We present optical photometry of the X-ray transient XTE J2123-058, obtained in 1998 July–October. The light curves are strongly modulated on the 5.95-h 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 …