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arxiv: astro-ph/9903395 · v1 · submitted 1999-03-25 · 🌌 astro-ph

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

G. J. Sobczak (Harvard) , J. E. McClintock (CfA) , R. A. Remillard (MIT) , A. M. Levine (MIT) , E. H. Morgan (MIT) , C. D. Bailyn (Yale) , J. A. Orosz (Penn State) This is my paper
classification 🌌 astro-ph
keywords x-rayj1550-564highnovaobservedoutburstrxtespectra
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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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