Suzaku Observation of the transient black hole binary XTE J1752 223
Abstract
The black hole candidate XTE J1752-223 was discovered on October 23, 2009 with RXTE/PCA and was observed by several other satellites in X-ray band, including MAXI. MAXI succeeded in covering whole picture of the outburst from low/hard state to high/soft state, and to low/hard state again. (Nakahira et al. 2010). Triggered by MAXI team, Suzaku carried out a ToO observation XTE J1752-223 with the wide X-ray band instruments on February 24, 2010. As Reis et al. (2010) reported, the source flux exceeded 400 mCrab and the spectrum was described with MCD, power-law model and broadened iron line. In general, we have to carefully estimate the effect of event pileup at the CCD image peak of such a bright source to avoid that effect. We independently estimated the pileup affected region in particular, and found that the region within 2 arcmin from the image peak is likely to be affected by pileup at least. In this paper we show the result of pileup estimation and the effect for the X-ray spectrum with the larger discarding area, and also the accretion disk parameter based on the obtained spectra.
- Publication:
-
The First Year of MAXI: Monitoring Variable X-ray Sources
- Pub Date:
- December 2010
- Bibcode:
- 2010fym..confP...2K