INTEGRAL spectroscopy of the accreting millisecond pulsar XTE J1807-294 in outburst
文献类型：期刊论文
| 作者 | Falanga, M; Bonnet-Bidaud, JM; Poutanen, J; Farinelli, R; Martocchia, A; Goldoni, P; Qu, JL ; Kuiper, L; Goldwurm, A; Qu JL(屈进禄)
|
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2005 |
| 卷号 | 436期号:2页码:647-652 |
| 关键词 | accretion, accretion disks X-rays : binaries stars : individual : XTE J1807 294 stars : neutron |
| 通讯作者 | CEA Saclay, CNRS FRE 2591, DSM DAPNIA, Serv Astrophys, F-91191 Gif Sur Yvette, France ; Oulu Univ, Astron Div, Oulu 90014, Finland ; Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy ; Astron Observ, F-67000 Strasbourg, France ; Chinese Acad Sci, Inst High Energy Phys, Lab Particle Astrophys, Beijing 100039, Peoples R China ; Natl Inst Space Res, SRON, NL-3584 CA Utrecht, Netherlands |
| 英文摘要 | The transient X-ray accreting millisecond pulsar XTE J1807-294 was observed during its February/March 2003 outburst by INTEGRAL, partly simultaneously with the XMM-Newton and RXTE satellites. We present here the first study of the 0.5-200 keV broad-band spectra of the source. On February 28, the source spectrum was consistent with thermal Comptonization by electrons of temperature similar to 40 keV, considerably higher than the value (similar to 10 keV) previously derived from the low energy XMM-Newton data alone. The source is detected by INTEGRAL up to 200 keV with a luminosity in the energy band (0.1-200) keV of 1.3 x 10(37) erg s(-1) ( assuming a distance of 8 kpc). 22 days later the luminosity dropped to 3.6 x 10(36) erg s(-1). A re-analysis of XMM-Newton data yields the orbital Doppler variations of the pulse period and refines the previous ephemeris. For this source, with shortest orbital period of any known binary radio or X-ray millisecond pulsar, we constrain the companion mass M-c < 0.022 M-circle dot, assuming minimum mass transfer driven by gravitational radiation. Only evolved dwarfs with a C/O composition are consistent with the Roche lobe and gravitational radiation constraints, while He dwarfs require an unlikely low inclination. |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000229475600032 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/238187]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Falanga, M,Bonnet-Bidaud, JM,Poutanen, J,et al. INTEGRAL spectroscopy of the accreting millisecond pulsar XTE J1807-294 in outburst[J]. ASTRONOMY & ASTROPHYSICS,2005,436(2):647-652. |
| APA | Falanga, M.,Bonnet-Bidaud, JM.,Poutanen, J.,Farinelli, R.,Martocchia, A.,...&屈进禄.(2005).INTEGRAL spectroscopy of the accreting millisecond pulsar XTE J1807-294 in outburst.ASTRONOMY & ASTROPHYSICS,436(2),647-652. |
| MLA | Falanga, M,et al."INTEGRAL spectroscopy of the accreting millisecond pulsar XTE J1807-294 in outburst".ASTRONOMY & ASTROPHYSICS 436.2(2005):647-652. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。