Abstract
The X-ray source LMC X-2 was observed with EXOSAT for -8hours on February 2nd, 1984 with simultaneous photometric and spectroscopic optical coverage. The source was seen at a luminosity of L x ∼ 1.5 10 38erg.s −1 with a mean X-ray spectrum which can be described equally well by either a superposition of a thermal emission of a thin hot (T th∼5keV) plasma and a cooler blackbody radiation (T bb∼1.3keV) or by a comptonized thermal (T co∼3keV) radiation. There is no evidence of iron line. The mean source spectrum is found very alike those of the bright galactic bulge sources. The source is however only moderately variable in X-rays with spectral variations similar to those of Sco X-1 in quiescent state. No coherent periodic (0.016–2500s) pulsations are detected. Large photometric optical variations are present which suggest an orbital period of 6.4h though at a low level of significance. There is no clear correlation however between X-ray and optical variations.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
