Investigation of X-ray Objects with Astro-D and ROSAT

使用 Astro-D 和 ROSAT 研究 X 射线物体

基本信息

批准号：
06044225
负责人：
INOUE Hajime
金额：
$ 4.61万
依托单位：
The Institure of Space and Astronautical Science
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06044225/
关键词：
X-ray astronomy scientific satellite X-ray spectroscopy cosmic hot plasmas X-ray sources black holes evolution of the universe

项目摘要

ASCA (ASTRO-D), the fourth X-ray astonomy satellite of ISAS,Japan, was launched in February, 1993. ASCA is an X-ray astronomy observatory which is, for the first time, capable of performing imaging and spectroscopic observations simultaneously over a wide energy range 0.5-10 keV.Whereas, ROSAT,the X-ray astronomy satellite of the Max-Planck Institute, Germany, was launched in June, 1990. ROSAT is also an X-ray astronomy observatory which is characterized by its excellent imaging capability, although it is limited to narrower energy bands than ASCA.ASCA has much higher spectral capability than ROSAT,while ROSAT has much finer imaging capability and higher source detection sensitivity that ASCA.Both observatories are really complimetary to each other.An extensive collaboration between Japanese and German scientists has been carried out in performing simultaneous observations, cross-calibrations of the X-ray telescopes, exchanging the data, developping analysis software, discussing the sc … More ientific yields, presenting the results to international communities, future development of instruments and so on.The ASCA instruments cover the most important energy band for plasma diagnostics, because all the K-lines and the K-absorption edges from oxygen through iron at various ionization stages lie within this band. The CCD camera of ASCA can resolve all major lines individually. Motion of plasma of the order or greater than 1000 km/s can be measured significantly from Doppler shift of the line energies. These capabilities of ASCA allow diagnostics of accreting matter around such compact objeots as neutron stars and black holes. On the other hand, the ROSAT telescope provides an accurate position of each X-ray sources and enables us to indentify the X-ray sources with optically known sources. The highly resolved spatial information with ROSAT also provides powerful means for the investigations of extended plasmas in supernova remnants, galaxies, and clusters of galaxies. Combining these characteristics of the two observatories, several remarkable scientific results have already been obtained and shown in many scientific papers. This collaborative study should be kept continuing in future. Less

ASCA (ASTRO-D), the fourth X-ray astonomy satellite of ISAS,Japan, was launched in February, 1993. ASCA is an X-ray astronomy observation that is, for the first time, capable of performing imaging and spectroscopic observations simply over a wide energy range 0.5-10 keV.Whereas, ROSAT, the X-ray astronomy satellite of the Max-Planck Institute, Germany, was launched 1990年6月，Rosat也是X射线天文学观察，其特征是其出色的成像能力，尽管它仅限于狭窄的能量带，而不是ASCA.ASCA比ROSAT更高的光谱能力要高得多，而Rosat具有更高的成像能力，而Asca的敏感性则具有更高的敏感性。 observations, cross-calibrations of the X-ray telescopes, changing the data, developing analysis software, discussing the sc … More ientific yields, presenting the results to international communities, future development of instruments and so on.The ASCA instruments cover the most important energy band for plasma diagnostics, because all the K-lines and the K-absorption edges from oxygen through iron at various ionization stages lie within this band. ASCA的CCD摄像头可以单独解决所有主要线路。阶的血浆运动或大于1000 km/s的运动可以从线能的多普勒移位中显着测量。 ASCA的这些能力允许诊断在诸如中子星和黑洞等紧凑型objeots周围接受物质。另一方面，ROSAT望远镜提供了每个X射线源的准确位置，并使我们能够用光学上已知的来源缩小X射线源。与ROSAT相关的高度分辨的空间信息还为对星系的超新星残留物，星系和簇中的扩展等离子体进行了研究提供了强大的手段。结合了两个观察者的这些特征，已经在许多科学论文中获得并显示了几个显着的科学结果。这项协作研究应在未来继续进行。较少的