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Irregular X-ray Variation of LMC X-3
Published online by Cambridge University Press: 12 April 2016
Extract
LMC X-3 is an X-ray binary in the Large Magellanic Cloud. It was discovered by UHURU and observations with various satellites showed that the X-ray source was variable by a factor of up to 100 (e.g. Traves et al. 1988). Using the GINGA and HEAO-1 observations, Cowley et al. (1991) found a strong ∼ 198 (or possibly ∼ 99) day modulation in the X-ray luminosities of LMC X-3. They suggested that this modulation may be due to an accretion disc precession, or periodic variations in the mass transfer rate, or a combination of both.
We observed LMC X-3 with the TTM in 1988-1990. The present paper gives some results from the analysis of the data obtained.
The TTM is a coded mask telescope on board the MIR space station. It is capable of producing images in the energy range 2-30 keV with a spectral resolution of about 18% at 6 keV (Brinkman et al. 1985).
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- High-Energy Transients
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- Copyright © Springer-Verlag 1995