A 420-day X-ray/optical modulation and extended X-ray dips in the short-period transient Swift J1753.5โ0127
A 420-day X-ray/optical modulation and extended X-ray dips in the short-period transient Swift J1753.5โ0127
We have discovered a โผ420-d modulation, with associated X-ray dips, in Rossi X-Ray Timing Explorer-All Sky Monitor/Monitor of All-Sky X-ray Image/Swift-Burst Alert Telescope archival light curves of the short-period (3.2 h) black hole X-ray transient, Swift J1753.5โ0127. This modulation only appeared at the end of a gradual re-brightening, approximately 3 โฆ