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[15.06] Analysis of the 1999 Outburst of Black Hole Candidate 4U 1630-472

D. Tournear (SLAC), R. Saxena (UC Berkeley), E. D. Bloom, W. Focke, G. Godfrey, P. M. Saz Parkinson, K. T. Reilly, G. Shabad (SLAC), B. Giebels (Ecole Polytechnique, France), K. S. Wood, R. M. Bandyopadhyay, G. Fritz, P. Hertz, M. P. Kowalski, M.N. Lovellette, P. S. Ray, M. T. Wolff, D. J. Yentis (NRL), J. D. Scargle (NASA Ames Research Center)

4U 1630-472 is a transient low mass x-ray binary (LMXB). The lack of type I X-ray bursts in addition to characteristics in the X-ray timing and spectrum classify the compact object as a black hole candidate (BHC). This particular transient undergoes outbursts every 550 - 690 days. We analyzed archival data of this source�s 1999 outburst obtained from the RXTE and USA X-ray satellites. The behavior of the disk temperature throughout the outburst is discussed along with appearance of a low frequency, ~ 1 Hz, QPO during the onset of the outburst.

The author(s) of this abstract have provided an email address for comments about the abstract: tournear@stanford.edu

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Bulletin of the American Astronomical Society, 34, #4
© 2002. The American Astronomical Soceity.