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.

我们与日本国家天文台斯巴鲁望远镜合作建造了多目标红外相机和光谱仪（MOIRCS）。MOIRCS在目前用于8-10米望远镜的近红外相机中具有最宽的视场。视场由最先进的近红外碲镉汞阵列（HAWAII 2）沿着专用光学系统建立。具有冷却狭缝掩模的多目标光谱学的能力是MOIRCS的另一个优点，这还没有被现有的仪器所建立。在白天，只要观测者想使用任何形状的狭缝图案来观测他们的天体，就可以更换狭缝掩模。在8.2米斯巴鲁望远镜的试观测过程中，我们证实MOIRCS完全达到了原来的指标。测试观测是在SSA 22的区域进行的，那里的原星系团位于z=3.1。利用SupirmCAM的光学档案数据和MOIRCS的近红外数据，通过模型SED拟合光度数据，得到了星系的光度红移和恒星质量。空间分布在原团区表现出明显的聚集特征。

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