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X-ray Nova XTE J1550-564: RXTE Spectral Observations

G. J. Sobczak·J. E. McClintock·R. A. Remillard·A. M. Levine·E. H. Morgan·C. D. Bailyn·J. A. Orosz
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Abstract

Excellent coverage of the 1998 outburst of the X-ray Nova XTE J1550-564 was provided by the Rossi X-ray Timing Explorer. XTE J1550-564 exhibited an intense (6.8 Crab) flare on 1998 September 19 (UT), making it the brightest new X-ray source observed with RXTE. We present a spectral analysis utilizing 60 Proportional Counter Array spectra from 2.5-20 keV spanning 71 days, and a nearly continuous All Sky Monitor light curve. The spectra were fit to a model including multicolor blackbody disk and power-law components. XTE J1550-564 is observed in the very high, high/soft, and intermediate canonical outburst states of Black Hole X-ray Novae.

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G. J. Sobczak, J. E. McClintock, R. A. Remillard, A. M. Levine, E. H. Morgan, C. D. Bailyn, J. A. Orosz. 1999-03-25. X-ray Nova XTE J1550-564: RXTE Spectral Observations. https://doi.org/10.1086/312037

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