HEAD Division Meeting 1999, April 1999
Session 15. X-Ray Binaries
Poster, Tuesday, April 13, 1999, 8:30am-6:02pm, Gold Room

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[15.28] Watching LMC X-3 from cycle to cycle with RXTE

P. T. Boyd, A. P. Smale (USRA and LHEA, NASA/GSFC)

LMC X-3, a luminous and highly variable black hole candidate, was observed with RXTE as part of an intensive X-ray and optical observing campaign, occurring over the course of one week in December 1998. Excellent coverage spanning five contiguous 1.7-day binary cycles resulted, with the highest attainable time and spectral resolution of RXTE. The X-ray luminosity varies on the order of 20 percent during this period. We present the results of a search for phase variations in the X-ray spectral components, as well as cycle-to-cycle spectral evolution. An investigation of the RXTE data for fast time variability of LMC X-3 will also be presented.

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