Spectral Evolution of the Black Hole X-ray Binary XTE J1752-223 Observed with MAXI
Abstract
The MAXI/GSC observed the black hole candidate XTE J1752-223 in the 2009-2010 outburst from the onset to the end. From the GSC light curve, it spent about three months to enter the high/soft state (HSS) through two plateau phases in the rising part of the outburst. The source definitely lies in the extreme low/hard state (LHS) during the first plateau period, and in the intermediate state just after the second plateau period, which was confirmed by RXTE, but spectral properties during the second plateau period (from the beginning of the December 2009 to mid-January 2010) were not well investigated due to the solar avoidance limitation of many X-ray satellites. Only the MAXI/GSC and Swift/BAT could this interesting phase, so we performed a broadband spectral analysis of the entire outburst using a combination of MAXI-GSC and Swift-BAT survey data. In this paper, we will report on the entire outburst behavior, and will discuss the difference between the first and second plateau phase from both observational and theoretical points of view.
- Publication:
-
The First Year of MAXI: Monitoring Variable X-ray Sources
- Pub Date:
- December 2010
- Bibcode:
- 2010fym..confP...1N