| RXTE ASM的双SSC联合直接解调成像 |
| |
| 引用本文： | 陈勇,宋黎明,李惕碚,崔伟.RXTE ASM的双SSC联合直接解调成像[J].天文学报,2000,41(2):214-218. |
| |
| 作者姓名： | 陈勇 宋黎明 李惕碚 崔伟 |
| |
| 作者单位： | 1. 中国科学院高能物理研究所,北京100039;宇宙线和高能天体物理开放实验室,北京100039
2. Massachusetts Institute of Technology,Canbrudge,MA 02139,U.S.A |
| |
| 基金项目： | 国家自然科学基金(19673010)和中国科学院“九·五”基础研究青年基金资助课题 |
| |
| 摘 要： | 利用直接解调成像方法对ＲＸＴＥ ＡＳＭ两个指向相同的扫描阴影照像机（ＳＳＣ）的观测，数据进行了联合成像分析，对Ｃｒａｂ天区的研究结果表明，联合成像对源的分辨能力比单ＳＳＣ成像有进上步提高，并且还对银心附近含多个源的一个天区进行了联合成像，分别计算了成像所得的３个Ｘ射线源的强度和位置坐标，并利用源与源之间的位置关系对ＲＸＴＥＡＳＭ定位定标中可能存在的系统误差作出估计，发现以直接解调成像法所得强源的定
|
| 关 键 词： | RXTE ASM数据 直接解调成像 成像分析 |
| 修稿时间： | 1998-07-23 |
DIRECT DEMODULATION IMAGING ANALYSIS OF THE COMBINED TWO SETS OF SSC DATA OF RXTE ASM |
| |
| CHEN YONG,SONG Li-Ming,LI Ti-Pei,CUI Wei.DIRECT DEMODULATION IMAGING ANALYSIS OF THE COMBINED TWO SETS OF SSC DATA OF RXTE ASM[J].Acta Astronomica Sinica,2000,41(2):214-218. |
| |
| Authors: | CHEN YONG SONG Li-Ming LI Ti-Pei CUI Wei |
| |
| Institution: | CHEN YONG
;(Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039);CHEN YONG
;(Cosmic Ray and High Energy Astrophysics Lab, Chinese Academy of Sciences, Beijing 100039);SONG Li-Ming
;(Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039);SONG Li-Ming
;(Cosmic Ray and High Energy Astrophysics Lab, Chinese Academy of Sciences, Beijing 100039);LI Ti-Pei
;(Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039);LI Ti-Pei
;(Cosmic Ray and High Energy Astrophysics Lab, Chinese Academy of Sciences, Beijing 100039) |
| |
| Abstract: | The imaging analysis results of the combined two sets of SSC (Scanning Shadow Camera) data of RXTE ASM using the direct demodulation method are presented in this paper. An analysis of the sky region of the Crab constellation shows that the image quality of the combined two SSC data sets is better than that of the single SSC data. In addition, the result of a region near the galactic center is also presented. The intensities and coordinates of three X-ray point sources in this region are determined by the direct demodulation method. Moreover, both the systematic errors in the calibration of pointing directions of RXTE ASM and the errors of the coordinates obtained by the direct demodulation method have been estimated. From the bright point sources, the errors of coordinates given by the direct demodulation method are smaller than those given by the least square theoretical fit. |
| |
| Keywords: | RXTE ASM data direct demodulation method image analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
