Monthly Notices of the Royal Astronomical Society
We present extensive CCD photometry of the optical counterpart of X1735–444 which reveals the orbital period of the system. It is periodically variable with a period of 4.654 hr and a full amplitude of 0.15 mag. The mean modulation is quasi-sinusoidal; there are, however, also significant intrinsic deviations from the mean light curve.
Corbet, R. H. D.; Thorstensen, J. R.; Charles, P. A.; and Menzies, J. W., "The Orbital Period of the Optical/X-Ray Burster X1735-444 (V926 Sco)" (1986). Open Dartmouth: Faculty Open Access Scholarship. 1883.