权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Observation of Very High Energy Gamma Rays with 7m telescope

用7m望远镜观测甚高能伽马射线

基本信息

批准号：
07247103
负责人：
TANIMORI Toru
金额：
$ 170.24万
依托单位：
Tokyo Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research on Priority Areas
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1998
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-07247103/
关键词：
Cerenkov Telescope High Energy γ-ray Astronomy Super Nova Remnant Origin of Cosmic Rays Shock Acceleration Pulsar Active Galactic Nuclei 空気チェレンコフ光宇宙ガンマ線中性子星宇宙線

项目摘要

In the year of 1999, the last fiscal year of the present 4 years' project, we finalized adjustments of each part of the 7m aperture telescope, transported them to Australia in December 1998, and assembled them to construct a 7m telescope in the observation site in Woomera, South Australia in January 1999. We also continued operation and data-analysis of 3.8 m telescope.In June 1998, the altitute-azimuth mount of the 7m telescope was assembled and operated to confirm its performance and to test the software programs for driving the telescope. We found that the attitude of the telescope is controled with the designed accuracies.From July to October in 1998, we tested all the spherical mirrors of 80 cm diameter to confirm their focusing ability as good as 0.1° and then in November, these mirrors were installed onto the "support panel". The attitude of the mirrors was changed by using the driving motors of which movement is remote-controlled, the result ensuring that the assembling of the mirrors will be made in Australia with no unexpected problems.The test of photomultipliers and electronics circuits were made, as well as the development of the software program of on-line data taking system.In January 1999, the main body of the 7m telescope was assembled and installed in the observation site in Australia. In February, electronics circuits are connected to the telescope, aud the test "overall" operation of the telescope was commenced in March.We have continued development of the analysis technique of the observation data from the 3.8 m telescope, in particular by using the timing information of Cerenkov photons. The technique was applied to the data of the supernova remnant SN 1006, which enabled us to obtain the differential energy spectrum from the object.

1999年，即本4年项目的最后一个财政年度，我们完成了7米口径望远镜各部分的调整，并于1998年12月将它们运到澳大利亚，并于1999年1月在南澳的伍默拉观测站组装成一台7米望远镜。1998年6月，7米望远镜的高度-方位角支架组装完毕，并进行了操作，以确认其性能，并测试驱动望远镜的软件程序。1998年7月至10月，我们对所有直径为80 cm的球面镜进行了测试，确定其聚焦能力为0.1°，并于11月将这些球面镜安装到“支撑板”上。1999年1月，研制了一种新型的光学反射镜，并对光电倍增管和电子线路进行了测试，开发了在线数据采集系统的软件程序。7米望远镜的主体在澳大利亚的观测场组装安装。2月，电子电路连接到望远镜，3月开始测试望远镜的“整体”操作，我们继续发展3.8米望远镜观测数据的分析技术，特别是利用切伦科夫光子的定时信息。将该技术应用于超新星遗迹SN 1006的数据，使我们能够获得该物体的微分能谱。