Hard X-ray Polarization Measurements on Crab Nebula and Cygnus X-1

蟹状星云和天鹅座 X-1 的硬 X 射线偏振测量

• 批准号: 22540245
• 负责人: KAMAE Tuneyoshi
• 金额: $ 2.75万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22540245/
• 关键词: 気球実験; 軟ガンマ線偏光検出器; かに星雲; 白鳥座; ブラックホール

The aim of the research program has been to mount the hard X-ray polarimeter (PoGOLite) we produced with other funds onto a gondola in ESRANGE balloon station in Sweden, and to carry out one-week-long observations of Crab Nebula and Cygnus X-1 onboard a balloon. The polarimeter, control system, and gondola assembly have been built on funds and grants from Stanford Univ., Wallenberg Foundation, JSPS and Swedish Space Board. Two possible long-duration flight routes have been considered: the shorter one is one-week-long flight from Sweden to northern Canada and the longer one is three-week-long circumnavigation around the North Pole. The polarimeter is most sensitive between 20keV and 60keV and capable of detecting 3% polarization in the energy band for Crab Nebula and Cyg X-1 in the hard state. Successful detection of polarization in the targets in the energy range will unravel the emission mechanism and the orientation of the magnetic field at the hard X-ray sources. So far no high accuracy measurement has been made in the energy range. The funds will be used to support Japanese collaboration members to participate in the balloon flight and data analyses.

该研究计划的目的是将我们与其他基金共同生产的硬X射线偏振仪(PoGOLite)安装在瑞典埃斯兰奇气球站的吊船上，并在气球上对蟹状星云和天鹅座X-1进行为期一周的观测。旋光仪、控制系统和座舱组件是在斯坦福大学、瓦伦堡基金会、JSPS和瑞典空间委员会的资金和赠款的基础上建造的。考虑了两条可能的长时间飞行路线：较短的一条是从瑞典到加拿大北部为期一周的飞行，较长的一条是绕北极航行三周。该旋光仪在20keV-60keV范围内最灵敏，能够探测到蟹状星云和硬态Cyg X-1在能带内3%的偏振。在能量范围内成功地探测到目标的偏振将揭开硬X射线源的发射机制和磁场的定向。到目前为止，还没有在能量范围内进行高精度的测量。这笔资金将用于支持日本合作成员参与气球飞行和数据分析。

项目成果

硬X線偏光検出器 PoGOLite 気球実験の現状と今後

硬X射线偏振探测器PoGOLite气球实验的现状与未来

• 发表时间: 2013
• 作者: Masanori Hanada;So Matsuura and Fumihiko Sugino;Kin-ya Oda;高橋弘充;松浦壮;Kin-ya Oda;高橋弘充
• 通讯作者: 高橋弘充

The Polarized Gamma-Ray Observer, PoGOLite

偏振伽马射线观测器 PoGOLite

• 发表时间: 2010
• 期刊: Trans. JSASS Aerospace Tech. Japan, 8, Pm_1-Pm_5
• 作者: Khludnev;A. M.; Kovtunenko;V. A.; Tani;Atusi;Hiroki Ohwa;H. Takahashi
• 通讯作者: H. Takahashi

宇宙線X線検出器PoGOLite気球実験の地上校正試験

宇宙线X射线探测器地面校准测试PoGOLite气球实验

• 发表时间: 2013
• 作者: 河野貴文;高橋弘充;釜江常好他
• 通讯作者: 釜江常好他

宇宙硬X線検出器PoGOLite気球実験の地上校正試験

空间硬X射线探测器PoGOLite气球实验地面校准测试

• 发表时间: 2013
• 作者: 河野貴文;高橋弘充;釜江常好 他
• 通讯作者: 釜江常好 他

A Thermal-Neutron Detector with a Phoswich System of LiCaAlF6 and BGO Crystal Scintillators onboard PoGOLite

PoGOLite 上具有 LiCaAlF6 磷光系统和 BGO 晶体闪烁体的热中子探测器

• 发表时间: 2010
• 作者: Akimasa Kataoka;Hidekazu Tanaka;Satoshi Okuzumi;Koji Wada;金子和雄;H. Takahashi
• 通讯作者: H. Takahashi