Infrared Spectroscopy of Distant Forming Galaxies

遥远形成星系的红外光谱

• 批准号: 09640319
• 负责人: IWAMURO Fumihide
• 金额: $ 1.98万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09640319/
• 关键词: Infrared Astronomy; OH-airglow; Galaxies; 赤外線天文学; OH夜行

The OH-airglow suppressor, one of the first generation instruments of Subaru telescope, and its camera section (CISCO) have been developed for these two years. In particular, the Zenger prism which was installed in the filter wheel of CISCO and used for the slitless multi-object spectroscopy mode was manufactured, and then, tested its performance through the test observation in Japan. The summary of the test results for this new-concept observing procedure are as follows.The hydrogen emission line of a distant quasar was detected successfully by the slitless multiobject spectroscopy mode of CISCO mounted on the IR simulator telescope in Mitaka. The performance of this observing mode was demonstrated by using real obtained image.The spatial resolution of the Subaru telescope is very important for this observing mode, because the image size affects the spectral resolution directory. We could confirm the amazing performance of the telescope (the minimum image size of 0.2 arcsec despite th … More e imperfection of the telescope), indicating more superior performance of the slitless multi-object spectroscopy mode than we expected.The total efficiency of this observing mode (including the quantum efficiency of the detector) is about 30%. This is significantly high value comparing with the other infrared spectrograph which usually have very complicated optical design. The expected limiting magnitude of this observing mode is 21mag (lambda=2.1mum, S/N=5) from the results of these test observations.The scheduled observing targets during the engineering term up to this summer are the surrounding areas of several radio galaxies such as B3 0731*438 and B3 0939*381, and the selected blank fields such as Subaru Deep Fields. The distant cluster of forming galaxies will be surveyed by detecting the high-redshifted hydrogen emission lines. New high-redshift clusters which could not identified by usual multi-color detection technique will be discovered through these observations, and the galaxy forming process in the distant universe will be investigated by the new-concept observing technique of "infrared slitless multi-object spectroscopy". Less

斯巴鲁望远镜的第一代光学仪器OH-气辉抑制器及其相机部分（CISCO）是近两年来研制成功的。特别是研制了安装在CISCO滤光轮上的用于无狭缝多目标光谱模式的Zenger棱镜，并通过在日本的试验观测对其性能进行了测试。这一新概念观测程序的测试结果总结如下：利用安装在三鹰红外模拟望远镜上的CISCO无狭缝多目标光谱模式，成功地探测到了一个遥远类星体的氢发射谱线。利用真实的图像验证了该观测模式的性能，斯巴鲁望远镜的空间分辨率对该观测模式非常重要，因为图像尺寸影响光谱分辨率的指标。我们可以证实望远镜的惊人性能（尽管有0.2角秒的最小图像尺寸， ...更多信息 e不完美），表明无狭缝多目标光谱模式比我们预期的有更上级的性能，这种观测模式的总效率（包括探测器的量子效率）约为30%.这与通常具有非常复杂的光学设计的其它红外光谱仪相比是显著高的值。从试验观测结果看，该观测模式的极限星等为21 mag（λ = 2.1 μ m，S/N=5），工程期到今年夏天的观测目标是B30731 *438和B30939 *381等几个射电星系的周围区域，以及选定的Subaru Deep Fields等空白区。遥远的星系团正在形成的星系将通过探测高红移的氢发射线进行调查。通过这些观测，将发现用通常的多色探测技术无法识别的新的高红移星系团，并利用“红外无缝多目标光谱”新概念观测技术研究遥远宇宙中星系的形成过程。少

项目成果

岩室史英: "光アライアンス 11月号" 日本工業出版, 6 (1998)

岩室文英：《光联盟11月号》日本工业周刊，6（1998）

K. Motohara et al.: "CISCO : A Cooled Infrared Spectrogroph and Camera for OHS" Proc.S.P.I.E.3354. 659-667 (1998)

K. Motohara 等人：“CISCO：用于 OHS 的冷却红外光谱仪和相机”Proc.S.P.I.E.3354。

F.Iwamuro: "Near Infrared Camera & Spectrograph)" Nihon Kogyo Shuppan Hikari Alliance. Nov. 29-35 (1998)

F.Iwamuro：“近红外相机

K.Motohara et.al.: "CISCO:A Cooled Infrared Spectrograph and Cameea for OHS" Proc.S.P.I.E.3354. 659-667 (1998)

K.Motohara 等人：“CISCO：用于 OHS 的冷却红外光谱仪和 Cameea”Proc.S.P.I.E.3354。

K.Motohara et al.: "CISCO : A Cooled Infrared Spectrograph and Camera for OHS" Proc.S.P.I.E.3354. 659-667 (1998)

K.Motohara 等人：“CISCO：用于 OHS 的冷却红外光谱仪和相机”Proc.S.P.I.E.3354。