X-ray nova XTE J1550-564:: RXTE spectral observations

被引：59

作者：

Sobczak, GJ

McClintock, JE

Remillard, RA

Levine, AM

Morgan, EH

Bailyn, CD

Orosz, JA

机构：

[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[2] MIT, Ctr Space Res, Cambridge, MA 02139 USA

[3] Yale Univ, Dept Astron, New Haven, CT 06520 USA

[4] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

来源：

ASTROPHYSICAL JOURNAL | 1999年 / 517卷 / 02期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

black hole physics; stars : individual (XTE J1550-564); X-rays : stars;

D O I：

10.1086/312037

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Excellent coverage of the 1998 outburst of the X-ray nova XTE J1550-564 was provided by the Rossi X-Ray Timing Explorer (RXTE). 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 fitted 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.

引用

页码：L121 / L125

页数：5

共 22 条

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