Near-infrared imaging of nearby galaxies

附近星系的近红外成像

• 批准号: 03640246
• 负责人: ICHIKAWA Takashi
• 金额: $ 1.15万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03640246/
• 关键词: near-infrared; imaging; galaxies; structure; 近赤外線; 2次元検出器; 宇宙論

Wide field imaging in near-infrared bands, which is important for studies of nearby galaxies and star forming regions in our Galaxy, has not been performed yet, since neither plates nor large format arrays sensitive at wavelength longer than ^<1 \mu m> were available. We have tested a unique combination of an infrared camera with a large format array and a fast f-ratio telescope. The detector used PtSi array. The array size is 512x512 pixels, and the pixel size is 26 micron x 20 micron. The field of view is 14' x 11' and the pixel resolution is 1.6" x1.3" when attached to the prime focus of the 105cm Schmidt telescope at Kiso observatory. Though the quantum efficiency of the array is low, the excellent uniformity, stability and low read-out noise of the camera combined with the fast f-ratio of the telescope resulted in a calibration accuracy of 0.1% of the sky background in a image obtained through 70 minute exposure in the H-band.A camera with PtSi 1040x1040 chip is now under development, using a chip with an improved quantum efficiency and filling factor. The field of view will be 18.4' x 18.4' at prime focus of the Kiso Schmidt telescope. It will be a powerful tool for imaging objects of large apparent size and for surveys. We are planning to obtain multi-color photometry at optical and infrared wavelengths of nearby galaxies.

近红外波段的宽视场成像对于研究我们银河系附近的星系和恒星形成区域非常重要，但尚未进行，因为板和大型阵列都对长于 ^<1 μ m> 的波长不敏感。可用。我们测试了红外相机与大画幅阵列和快速焦比望远镜的独特组合。探测器采用PtSi阵列。阵列尺寸为512x512像素，像素尺寸为26微米x 20微米。当连接到木曾天文台 105 厘米施密特望远镜的主焦点时，视场为 14' x 11'，像素分辨率为 1.6" x1.3"。尽管阵列的量子效率较低，但相机出色的均匀性、稳定性和低读出噪声与望远镜的快速焦比相结合，使得所获得的图像中天空背景的校准精度为0.1%通过在 H 波段曝光 70 分钟。采用 PtSi 1040x1040 芯片的相机目前正在开发中，使用的芯片具有改进的量子效率和填充因子。 Kiso Schmidt 望远镜主焦点处的视场为 18.4' x 18.4'。它将成为对大表观尺寸物体进行成像和调查的强大工具。我们计划在附近星系的光学和红外波长下获得多色光度测量。

项目成果

Vcmlriel,M.Yoshida,S,Nakada,Y.,Aoki,T.,soyano,T,Ichikawa,T.他: "BVRI photometry of SN 1993J in M81" Publ.Astron.Soc.Japan. 45. L59-L62 (1993)

Vcmriel，M. Yoshida，S，Nakada，Y.，Aoki，T.，soyano，T，Ichikawa，T. 等：“M81 中的 BVRI 光度测定”，Soc。 -L62 (1993)

Ichikawa,T.他: "Wide Field Imaging of Nearby Galaxus in Near indrared Bands" IAV symposium. 161. in press

Ichikawa, T. 等人：“近红外波段附近 Galaxus 的宽视场成像”IAV 研讨会 161。

Ichikawa, T., and M.Fukugita: "Hubble flows in the Pisces-Perseus Region from the Giovanelli-Haynes Galaxy Sample" Astrophys.J. 394. 61-80 (1992)

Ichikawa, T. 和 M.Fukugita：“哈勃从乔瓦内利-海恩斯星系样本流入双鱼座-英仙座区域” Astrophys.J.

Ichikawa,T.他: "Near-Indrared Imaging with a Schmidt Telescope" IAV symposium. 161. in press

Ichikawa, T. 等人：“使用施密特望远镜进行近红外成像”IAV 研讨会 161。正在出版。

T.Ichikawa,M.Fukujita: "Hubble Flows in the Pisces-Perseus Regiun trsm the Giovanelli-Haynes Galaxy Sample" Astrophysical Journal. 394. 61-80 (1992)

T.Ichikawa，M.Fukujita：“哈勃在双鱼座-英仙座区域流动，trsm 乔瓦内利-海恩斯星系样本”天体物理学杂志。