Near Infrared Deep Survey for Investigation of both Dark Age of the Universe and Cosmic Reionization

用于研究宇宙黑暗时代和宇宙再电离的近红外深度巡天

• 批准号: 15340059
• 负责人: TANIGUCHI Yoshiaki
• 金额: $ 10.11万
• 依托单位: Ehime University (2006)Tohoku University (2003-2005)
• 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-15340059/
• 关键词: galaxy formation; galaxy evolution; formation of active galactic nuclei; evolution of active galactic nuclei; 観測的宇宙論; 宇宙再電離

In order to investigate both the dark age and the cosmic reionization in early universe, we aim to observe very young galaxies and active galactic nuclei at redshift z > 8 by using highly-redshifted hydrogen Lyman alpha emission. For this purpose, our team has been developing a new near infrared imager and spectrograph for the 8.2 m Subaru Telescope; MOIRCS = Multi Object Infrared Camera and Spectrograph. This instrument has been already completed and opened for open use observations. MOIRCS has a wide field of view, 4 arcmin x 7 arcmin. This is the widest IR camera for such 8m class telescopes so far. Taking account of very high image quality of the Subaru Telescope, MOIRCS must be the most powerful and efficient IR instrument around the world.In order to detect highly redshifted hydrogen Lyman alpha emission, we have made new NIR narrowband filters from 1.1 micron to 2.3 micron. These narrowband filters allow us to detect Lyman alpha emitters from z = 9 to 18. The most distant know L … More yman alpha emitter is located at z = 6.96. This object was found by a narrowband filter survey in the optical window. The presence of such very young galaxies encourage us to make deep surveys for Lyman alpha emitters beyond z = 7.Our target fields are GOODS-North and GOODS-South (GOODS = Great Observatories Origins Deep Survey promoted by Hubble Space Telescope and NASA). These two fields have been imaged with the Advanced Camera for Surveys (ACS) on Hubble Space Telescope. Moreover, follow-up observations by many large telescope facilities at various wavelengths have been already made by now The Hubble Ultra Deep Field is also located in GOODS-South. Therefore, these fields are most promising fields for any NIR deep survey programs. We have already obtained very deep NIR broadband images of GOODS-North. We have also obtained optical multi-band filter images in GOODS-South. In the GOODS-South, very deep NIR images obtained with ISAAC on the 8.2m Very Large Telescope in Chile. Therefore, we are ready to make very deep imaging surveys with our new NIR narrowband filters with MOIRCS on the Subaru Telescope.Since the MOIRCS was ready for use since 2006, but many technical test observations were necessary to check the total performance. Therefore, we did not have any observing time to use our new NIR narrowband filters by this March. We are planning to use our new filters in the coming observation semester on the Subaru Telescope. Since MOIRCS is still the greatest NIR instrument, we hope that we will be able to find very high-redshift Lyman alpha emitters beyond z = 7 in near future. Less

为了研究早期宇宙的暗时代和宇宙再电离，我们利用高红移氢莱曼α辐射观测了z > 8的年轻星系和活动星系核。为此，我们的团队一直在为8.2米斯巴鲁望远镜开发一种新的近红外成像仪和光谱仪; MOIRCS =多目标红外相机和光谱仪。该仪器已完成并开放供开放使用观察。MOIRCS具有宽视场，4 arcmin x 7 arcmin。这是迄今为止此类8米级望远镜最宽的红外相机。考虑到斯巴鲁望远镜极高的成像质量，MOIRCS必然是世界上最强大、最高效的红外仪器，为了探测高度红移的氢莱曼α辐射，我们制作了1.1微米到2.3微米的新型近红外窄带滤光片。这些窄带滤波器使我们能够检测z = 9到18的莱曼α发射体。最遥远的知道L ...更多信息 γ-α发射体位于z = 6.96处。该天体是通过光学窗口中的窄带滤波器探测发现的。这些非常年轻的星系的存在促使我们对z = 7以上的莱曼α辐射源进行深入调查。我们的目标场是GOODS-北和GOODS-南（GOODS = Great Observatories Origins Deep Survey，由哈勃太空望远镜和NASA共同推动）。这两个领域已经成像与先进的相机调查（ACS）的哈勃太空望远镜。此外，许多大型望远镜设施在各种波长上的后续观测已经完成，哈勃超深场也位于GOODS-South。因此，这些领域是最有前途的领域，任何近红外深调查计划。我们已经获得了GOODS-North的非常深的近红外宽带图像。我们还获得了GOODS-South的光学多波段滤波图像。在GOODS-South，用ISAAC在智利8.2米甚大望远镜上获得的甚深近红外图像。因此，我们准备在斯巴鲁望远镜上使用我们的新型近红外窄带滤光片和MOIRCS进行非常深入的成像调查。由于MOIRCS自2006年以来就已准备好使用，但需要进行许多技术测试观察以检查总体性能。因此，到今年3月，我们没有任何观察时间来使用我们的新NIR窄带滤光片。我们计划在即将到来的观测学期中在斯巴鲁望远镜上使用我们的新滤光片。由于MOIRCS仍然是最伟大的近红外仪器，我们希望我们将能够找到非常高的红移莱曼α发射器超过z = 7在不久的将来。少

项目成果

A submillimetre survey of Lyman alpha haloes in the SA22 protocluster at z=3.1

对 SA22 原星团 z=3.1 处莱曼 α 晕的亚毫米调查

• 发表时间: 2005
• 期刊: Monthly Notices of Royal Astronomical Society 363
• 作者: Taniguchi;Y.;Kashikawa;N.;Kodaira;K.;et. al.;Y.Taniguchi;Y.Taniguchi;Y.Taniguchi
• 通讯作者: Y.Taniguchi

The Cosmic Evolution Survey (COSMOS): Subaru Observations of the HST Cosmos Field

• DOI: 10.1086/516596
• 发表时间: 2006-12
• 期刊: The Astrophysical Journal Supplement Series
• 作者: Y. Taniguchi;N. Scoville;N. Scoville;T. Murayama;D. Sanders;B. Mobasher;H. Aussel;P. Capak;M. Ajiki;S. Miyazaki;Y. Komiyama;Y. Shioya;T. Nagao;S. Sasaki;S. Sasaki;S. Sasaki;J. Koda;C. Carilli;M. Giavalisco;L. Guzzo;G. Hasinger;C. Impey;O. LeFèvre;S. Lilly;A. Renzini;M. Rich;E. Schinnerer;P. Shopbell;N. Kaifu;H. Karoji;N. Arimoto;S. Okamura;K. Ohta

Lyman Alpha Emitters at Redshift 5.7 in the COSMOS Field

莱曼阿尔法发射器在 COSMOS 场中的红移 5.7

• 发表时间: 2007
• 期刊: The Astrophysical Journal, Suppl. 172(In press)
• 作者: Murayama;T.
• 通讯作者: T.

宇宙を読む

读宇宙

• 发表时间: 2006
• 作者: 谷口義明;岡村定矩;谷口 義明;谷口 義明
• 通讯作者: 谷口 義明

Subaru Spectropolarimetry of Markarian 573:The Hidden High-Ionization Nuclear Emission-Line Region

Markarian 573 的斯巴鲁光谱偏振法：隐藏的高电离核发射线区域

• 发表时间: 2004
• 期刊: The Astronomical Journal 128・5
• 作者: Taniguchi;Y.;Yoshiaki Taniguchi;Y.Taniguchi;Y.Taniguchi;Y.Taniguchi;Y.Taniguchi;谷口 義明;谷口 義明;谷口 義明;谷口 義明
• 通讯作者: 谷口 義明