Search Publications
Discovery of slow X-ray pulsations in the high-mass X-ray binary 4U 2206+54
Wilms, J.; Reig, P.; Torrejón, J. M. +3 more
Context: The source 4U 2206+54 is one of the most enigmatic high-mass X-ray binaries. In spite of intensive searches, X-ray pulsations have not been detected in the time range 10-3-103 s. A cyclotron line at ~30 keV has been suggested by various authors but never detected with significance. The stellar wind of the optical com…
The aperiodic broad-band X-ray variability of Cygnus X-3
Axelsson, Magnus; Larsson, Stefan; Hjalmarsdotter, Linnea
We study the soft X-ray variability of Cygnus X-3. By combining data from the All-Sky Monitor and Proportional Counter Array instruments on the RXTE satellite with EXOSAT/Medium Energy (ME) detector observations, we are able to analyse the power density spectrum (PDS) of the source from 10-9 to 0.1 Hz, thus covering time-scales from sec…