Observation of X-ray binary Cygnus X-3 by Indian X-ray Astronomy Experiment

Abstract

The X-ray binary Cygnus X-3 was observed with the Indian X-ray Astronomy Experiment (IXAE) on Board the Indian Remote Sensing Satellite IRS-P3 during July 3-13, 1999 and October 11-24, 1999 with total useful exposure time of 31244.64 seconds in 1 sec integration mode. The short and long time variability of this X-ray source has been studied. We have found the orbital period to be 17254.273 ± 0.890 seconds.