Upgrades to the IOTA Infrared Detection & Guidance System

升级至IOTA红外检测

• 批准号: 9528129
• 负责人: H. Melvin Dyck
• 金额: $ 23.4万
• 依托单位: University of Wyoming
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-08-01 至 2000-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9528129&HistoricalAwards=false
• 关键词: Upgrades; IOTA; Infrared; Detection; &amp

Abstract AST- 9528129 Funds from this grant will be used to replace and upgrade components which limit the sensitivity of the Infrared Optical Telescope Array (IOTA). These components include the infrared beam-combining optics, the infrared detectors, the autoguiders and the data-collection computers. With these improvements the interferometer should be able to detect objects 10-20 times fainter than the present limit. In addition, by employing infrared autoguiders, it will be possible to observe true infrared sources with no visible counterparts. These changes will enable, for the first time with a near-infrared interferometer, the observations of heavily enshrouded evolved stars, Wolf-Rayet stars, planetary nebulae, emission-line stars, sources in giant molecular clouds and T Tauri stars. With an angular resolution of 0.012 arcseconds at a wavelength of 2.2 micrometers the interferometer can detect structures the size of Jupiter's orbit at the distance of the Orion star- forming regions.

摘要 AST- 9528129 这笔赠款将用于更换和升级限制红外光学望远镜阵列（IOTA）灵敏度的组件。 这些部件包括红外光束组合光学器件、红外探测器、自动制导器和数据收集计算机。 有了这些改进，干涉仪应该能够探测比目前的极限暗10-20倍的物体。 此外，通过使用红外自动制导器，将有可能观察到真正的红外源，而没有可见的对应物。 这些变化将首次使近红外干涉仪能够观测到被严重遮蔽的演化恒星、沃尔夫-拉叶星、行星状星云、发射线恒星、巨大分子云和金牛T星中的源。 在2.2微米的波长下，干涉仪的角分辨率为0.012角秒，可以探测到距离猎户座星星形成区域的木星轨道大小的结构。