Search for Cluster Gas Motion with X-ray Spectroscopy

用 X 射线光谱学搜索团簇气体运动

• 批准号: 19740112
• 负责人: OTA Naonmi
• 金额: $ 1.97万
• 依托单位: Japan Aerospace Exploration Agency
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19740112/
• 关键词: X線γ線天文学; 宇宙物理; X線天文学; 銀河団; 高温プラズマ; X線分光; ガスバルク運動; 非熱的現象; 宇宙構造形成

To reveal the dynamical evolution of the largest objects in the Universe called "clusters of galaxies", an X-ray spectroscopy with the Suzaku satellite has been performed. Since the clusters of galaxies contain a large amount of hot gas, it is possible to measure the motion and temperature of the gas in detail. In particular, we have confirmed, for the first time, the presence of the hottest gas (with temperature of 0.3 billion degree) in the Universe inside the RXJ1347 cluster with the X-ray observations.

为了揭示宇宙中最大对象的动态演化，称为“星系簇”，已经执行了带有Suzaku卫星的X射线光谱。由于星系簇包含大量热气，因此可以详细测量气体的运动和温度。特别是，我们首次证实了在RXJ1347群集内的宇宙中最热的气体（温度为3亿度），并具有X射线观测值。

项目成果

X-RAY DIAGNOSTICS OF THERMAL CONDITIONS OF THE HOT PLASMAS IN THE CENTAURUS CLUSTER

• DOI: 10.1088/0004-637x/701/1/377
• 发表时间: 2009-07
• 期刊: The Astrophysical Journal
• 作者: I. Takahashi;M. Kawaharada;K. Makishima;K. Matsushita;Y. Fukazawa;Y. Ikebe;T. Kitaguchi;M. Kokubun;K. Nakazawa;S. Okuyama;N. Ota;T. U. O. Tokyo;Riken;Tokyo University of Science;H. University;National Museum of Emerging Science;Innovation;Japan Aerospace Exploration Agency

Suzaku Observations of HCG62: Temperature, Abundance, and Extended Hard X-ray Emission Profiles

HCG62 的朱雀观测：温度、丰度和扩展的硬 X 射线发射曲线

• 发表时间: 2008
• 期刊: PASJ 60
• 作者: T. Tokoi;K. Sato;Y. Ishisaki;T. Ohashi;N.Y. Yamasaki;K. Nakazawa;K. Matsushita;Y. Fukazawa;A. Hoshino;T. Tamura;C. Egawa;N. Kawao;N. Ota;N. Isobe;M. Kawaharada;H. Awaki;J.P. Hughes
• 通讯作者: J.P. Hughes

A briglit, dust-obscured, millimeter-selected galaxy beyond the Bullet Cluster (1E0657-56)

子弹星团之外的一个明亮、被尘埃遮蔽的毫米级星系 (1E0657-56)

• 发表时间: 2008
• 期刊: Monthly Notices of the Royal Astronomical Society 390
• 作者: G.W.Wilson;et al.
• 通讯作者: et al.

Extremely hot gas in the most X-ray luminous cluster RXJ1347

X射线最亮星团RXJ1347中的极热气体

• 发表时间: 2009
• 作者: N.Ota;et. al.;N. Ota
• 通讯作者: N. Ota

Constraints on Non-Thermal X-ray Emission from the On-Going Merger Cluster Abell 3376 with Suzaku

对正在进行的合并集群 Abell 3376 与朱雀的非热 X 射线发射的限制

• 发表时间: 2009
• 期刊: PASJ 61
• 作者: N. Kawano;Y. Fukazawa;S. Nishino;K. Nakazawa;T. Kitaguchi;K. Makishima;T. Takahashi;M. Kokubun;N. Ota;T. Ohashi;N. Isobe;P. Henry;A. Hornschemeier
• 通讯作者: A. Hornschemeier