Development of metalic magnetic calorimeters for detection of Oxygen lines form intergalactic medium

开发用于探测星际介质中氧线的金属磁量热计

• 批准号: 15340088
• 负责人: YAMASAKI Noriko
• 金额: $ 10.5万
• 依托单位: Japan Aerospace Exploration Agency
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15340088/
• 关键词: radiation detector; SQUID; magnetic thermometer; intergalactic matter; highenergy astrophysics

The purpose of this research was to develop X-ray microcalorimetr using magnetic thermometers aiming for the detection of Oxygen emission lines from the warm-hot intergalactic medium. In this development, we succeeded to sense X-rays by metalic magnetic calorimeters firstly in Japan. The operation of magnetic calorimeters in adiabatic demagnetization refrigerators, which are considered to be only refrigeration method in space, were confirmed. Also future detectability of Oxygen lines by a wide field-of-view and high energy-resolution detectors were inspected in our Local Universe simulated by SPH. The CCD cameras onboard Suzaku satellite launched in 2005 achieved the best energy resolution for diffuse emission in Si detectors. We detected Galactic Oxygen emission with Suzaku, and obtained the tightest constraint for the emission from the intergalactic medium.

本研究的目的是发展X射线微量热计，利用磁温度计探测来自温暖-热星系际介质的氧发射线。在这项研究中，我们在日本首次成功地用金属磁量能器感测X射线。证实了磁量热器在绝热退磁制冷机中的运行，绝热退磁制冷机被认为是空间上唯一的制冷方式。在SPH模拟的局域宇宙中，考察了未来宽视场和高能量分辨率探测器对氧谱线的探测能力。2005年发射的朱雀卫星上的CCD相机实现了Si探测器漫发射的最佳能量分辨率。我们用朱雀号探测了银河系氧发射，并获得了银河系际介质发射的最严格约束。

项目成果

Detection of 5.5 MeV α particles with a Magnetic Calorimeter

使用磁热量计检测 5.5 MeV α 粒子

• 发表时间: 2004
• 期刊: Japanese Journal of Applied Physics 93,No.9A
• 作者: K. Sato;T. Ishikawa;Y. Ishisaki;T. Ohashi;T. Oshima;N. Y. Yamasaki
• 通讯作者: N. Y. Yamasaki

Detection of Highly Ionized O and Ne Absorption Lines in the X-Ray Spectrum of 4U 1820–303 in the Globular Cluster NGC 6624

• DOI: 10.1086/381087
• 发表时间: 2003-10
• 期刊: The Astrophysical Journal
• 作者: K. Futamoto;K. Mitsuda;Y. Takei;R. Fujimoto;N. Yamasaki

K.Yoshikawa, N.Y.Yamasaki, 他5名: "Detectability of the Warm/Hot Intergalactic Medium Through Emission Lines of OVII and OVIII"Publications of The Astronomical society of Japan. 55. 879-890 (2003)

K.Yoshikawa、N.Y.Yamasaki 和其他 5 人：“通过 OVII 和 OVIII 发射线检测暖/热星际介质”日本天文学会出版物 55. 879-890 (2003)。

Search for Oxygen Emission from Warm-Hot Intergalactic Medium around A2218 with Suzaku

用朱雀搜索 A2218 周围温暖的星际介质中的氧气排放

• 发表时间: 2007
• 期刊: Publications of the Astronomical Society of Japan 59・SP1(印刷中)
• 作者: Y.Takei;T.Ohashi;J.P.Henry;K.Mitsuda;R.Fujimoto;et al.
• 通讯作者: et al.

Locating the Warm-Hot Intergalactic Medium in the Simulated Local Universe

在模拟的本地宇宙中定位暖热的星际介质

• 发表时间: 2004
• 期刊: Publications of the Astronomical Society of Japan 56
• 作者: Yoshikawa;K. et al.
• 通讯作者: K. et al.