Magellan Telescope-Near Infrared Survey Project

麦哲伦望远镜-近红外巡天项目

• 批准号: 11691122
• 负责人: SATO Shuji
• 金额: $ 2.75万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11691122/
• 关键词: optical and infrared telescope; infrared survey; Magellanic Clouds; 赤外線望遠鏡; 広視野赤外線カメラ; 3.3μm放射

We have developed a 1.4-m telescope, and put it at South African National Astronomical Observatory (SAAO), Sutherland, South Africa.In 1999, we made an alt-azimuth mounting, and visited SAAO to discuss the specification of the telescope dome, which SAAO were making. The alt-azimuth mount has advantages of compactness and gravitational symmetry compared with the equatorial mount. However, we have to have an instrument rotator, and have to move the altitude, azimuth, and rotator axes at various speed. We have selected precision encoders and control these axes with well-tuned feedback loops.In 2000, we completed the control system, and took the whole telescope to SAAO.We made telescope nalysis using an optical CCD.With the resultant telescope parameters, the pointing accuracy of the telescope is 3 arcsec, which is among the best values of this class telescopes.In November 2000, the near-infrared three-band camera SIRIUS was attached to the telescope. We started test observations. We confirmed that the telescope fulfills the tracking and optical specifications. We have found the necessity of controlling the mirror temperature to have good mirror seeing. We have also improved the robustness of the telescope against wind.

我们研制了一台1.4米的望远镜，放在南非萨瑟兰的南非国家天文台（SAAO）。1999年，我们做了一个纬向支架，并拜访SAAO讨论SAAO正在制作的望远镜圆顶的规格。与赤道仪相比，经纬仪具有结构紧凑、重力对称等优点。然而，我们必须有一个仪器旋转器，并且必须以不同的速度移动高度、方位和旋转器轴。我们选择了精密编码器，并通过精心调校的反馈回路来控制这些轴。2000年，我们完成了控制系统，并将整个望远镜带到了SAA​​O。我们使用光学CCD进行了望远镜分析。根据所得的望远镜参数，望远镜的指向精度为3角秒，这是同类望远镜中最好的值。2000年11月， 近红外三波段相机 SIRIUS 连接到望远镜上。我们开始测试观察。我们确认该望远镜满足跟踪和光学规格。我们发现控制镜面温度以获得良好镜面视宁度的必要性。我们还提高了望远镜的抗风能力。

项目成果

Yao,Y.: "Unveiling Deeply Embedded Sources by Near-Infrared Polarimetric Imaging"Astrophys.J.. 542. 392-399 (2000)

Yao,Y.：“通过近红外偏振成像揭示深埋源”Astrophys.J.. 542. 392-399 (2000)

Yafeng Chen: "Near Infrared Imaging of the Star Forming Region AFGL 5157"Astron. J.. 117. 446-455 (1999)

陈亚峰：“恒星形成区 AFGL 5157 的近红外成像”Astron。

Chen, Y., Yao, Y., Yang, J., Hirao, T., Ishii, M., Nagata, T., Sato, S: "Near-Infrared Imaging of the Star-forming Region AFGL 5157"Astron.J. 117. 446-455 (1999)

Chen, Y.、Yao, Y.、Yang, J.、Hirao, T.、Ishii, M.、Nagata, T.、Sato, S：“恒星形成区域 AFGL 5157 的近红外成像”Astron。

Nakano,M.: "X-Ray Observations of the Orion OB1b Association"Publ.of the Astronomical Society of Japan. 51. 1-12 (1999)

Nakano,M.：“猎户座 OB1b 协会的 X 射线观测”日本天文学会出版物。

Nakano, Makoto ; Yamaguchi, Shigeo ; Sugitani, Koji ; Ogura, Katsuo ; Kogure, Tomokazu: "X-Ray Observations of the Orion OB1b Association"Publ.Of the Astronomical Society of Japan. 51. 1-12 (1999)

中野诚；