A search for X-ray periodicities from 4U 1700-37.
Stella, L.; White, N. E.; Gottwald, M.
Germany
Abstract
Using the EXOSAT observatory the authors have observed the massive X-ray binary system 4U 1700-37 for more than one complete orbital period. The authors report on a search for X-ray pulsations. No coherent periodicity was detected with upper limits to the pulsed fraction over the frequency range 256 to 2×10-5Hz (corresponding to rotational periods of 3.9 ms to 50000 s) of ≡0.5 to ≡50 per cent.