Study on the Evolution of Stellar Mass Distribution at High-z Universe with Multi-Object Infrared Camera and Spectrograph

利用多目标红外相机和摄谱仪研究高z宇宙恒星质量分布演化

• 批准号: 14340059
• 负责人: ICHIKAWA Takashi
• 金额: $ 9.22万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14340059/
• 关键词: galaxy evolution; clustering; high-z; near-infrared; 広視野撮像; 多天体分光

We have constructed Multi-Object Infrared Camera and Spectrograph (MOIRCS) with the collaboration of Subaru Telescope of National Astronomical Observatory. MOIRCS has a widest field of view among the current near-infrared cameras for 8-10 m telescopes. The field of view is established by the state-of-the-art near-infrared HgCdTe arrays (HAWAII2) along with dedicated optical system. The Capability of the multi-object spectroscopy with cooled slit masks is another advantage of MOIRCS, which has not been established by the current instruments. The slit masks are exchangeable during daytime whenever the observers want to use any configuration of the slit pattern for their astronomical objects. In the course of the test observation with 8.2m Subaru telescope, we have confurned that MOIRCS fully realized the original specifications. The test observations were done in the field of SSA22, where the proto cluster of galaxies is located at z=3.1. Using the optical archive data of SupirmCAM, and near-infrared data obtained by MOIRCS, we obtained the photometric redshift and the stellar mass of the galaxies by fitting the photometric data with the model SEDs. The spatial distributions shows the notable clustering features at the proto-cluster region.

我们通过国家天文天文台的斯巴鲁望远镜的合作构建了多对象红外摄像头和光谱仪（MOIRIR）。 Moirirs在8-10 m望远镜的当前近红外摄像机中的视野最广。视野是由最新的近红外HGCDTE阵列（夏威夷2）和专用的光学系统建立的。具有冷却的缝面膜的多对象​​光谱法的能力是Moirirs的另一个优点，Moirirs尚未由当前仪器确定。每当观察者想为其天文对象使用缝隙模式的任何配置时，狭缝面膜都是可以在白天交换的。在使用82m Subaru望远镜的测试观察过程中，我们认为Moircs完全意识到了原始规格。测试观察结果是在SSA22领域进行的，其中原型星系位于Z = 3.1。使用Supirmcam的光学存档数据以及Moirirst获得的近红外数据，我们通过将光度计数据与模型SED拟合，获得了光度红移和星系的恒星质量。空间分布显示了原始群集区域的显着聚类特征。

项目成果

Opticaldesign of MOIRCS

MOIRCS的光学设计

• 发表时间: 2003
• 期刊: SPIE 4841
• 作者: Suzuki;R. et al.
• 通讯作者: R. et al.

Tokoku, C. et al.: "Astronomical. Journal"SPIE. (In press). (2003)

Tokoku, C. 等人：《天文学杂志》SPIE。

The third data release of the Sloan digital Sky Survey

• DOI: 10.1086/427544
• 发表时间: 2005-03-01
• 期刊: ASTRONOMICAL JOURNAL
• 影响因子: 5.3
• 作者: Abazajian, K;Adelman-McCarthy, JK;Zucker, DB
• 通讯作者: Zucker, DB

The First Data Release of the Sloan Digital Sky Survey

• DOI: 10.1086/378165
• 发表时间: 2003-05
• 期刊: The Astronomical Journal
• 作者: K. Abazajian;J. Adelman-McCarthy;Marcel A. Ageros;S. Allam;S. Anderson;J. Annis;N. Bahcall;I. B

The second data release of the Sloan Digital Sky Survey

• DOI: 10.1086/421365
• 发表时间: 2004-07-01
• 期刊: ASTRONOMICAL JOURNAL
• 影响因子: 5.3
• 作者: Abazajian, K;Adelman-McCarthy, JK;Zucker, DB
• 通讯作者: Zucker, DB