Liger: Initiating Fabrication of Next Generation Keck Imager and Spectrograph

Liger：开始制造下一代 Keck 成像仪和光谱仪

• 批准号: 2308190
• 负责人: Shelley Wright
• 金额: $ 79.98万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-04-01 至 2024-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2308190&HistoricalAwards=false
• 关键词: Liger; Initiating; Fabrication; Next; Generation

The Liger instrument will allow astronomers to study solar systems around other stars, other galaxies and the regions near black holes. This instrument is a large complex unit. This project will allow the team developing this concept to continue their design work and build an important component of that system that operates at low temperature. In addition, the participants plan to expand a portable planetarium outreach program, Cosmic Tours, to better support San Diego County elementary and middle schools with curated shows that incorporate the Next Generation Science Standards.The Liger instrument envisaged for deployment at the Keck Observatory will combine an adaptive optics-fed integral field spectrograph and imaging camera that operate simultaneously in the near-infrared (0.81-2.45 μm). This project will maintain Liger’s fabrication momentum and provide the necessary research and development on a subsystem of the full instrument. Specifically, the plan is to fabricate, integrate, and cryogenically characterize the imager detector assembly that houses both the Teleydne Hawaii-2RG detector and pick-off mirrors that direct light to each of the lenslet and slicer integral field spectrograph components. A cryogenic chamber will be fabricated and integrated for alignment of the Liger imager and for testing the detector assembly. In parallel, software will be developed that uses the latest MACIE controllers with the Teledyne Hawaii-2RG. This testing will be the main component of a graduate student’s thesis work.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

Liger仪器将允许天文学家研究其他恒星，其他星系和黑洞附近区域的太阳系。 这台仪器是一个复杂的大单元。 该项目将允许开发这一概念的团队继续他们的设计工作，并构建在低温下运行的系统的重要组成部分。此外，参与者计划扩大一个便携式天文馆推广计划，宇宙图尔斯，通过结合下一代科学标准的策划展览，更好地支持圣地亚哥县的小学和中学。计划在凯克天文台部署的Liger仪器将联合收割机结合自适应光学反馈积分场光谱仪和成像相机，同时在近红外范围内运行（0.81-2.45 μm）。该项目将保持Liger的制造势头，并为整个仪器的子系统提供必要的研究和开发。具体而言，该计划是制造，集成和低温表征成像仪检测器组件，其中包含Teleydne夏威夷-2 RG检测器和拾取反射镜，这些反射镜将光引导到每个小透镜和切片器积分场摄谱仪组件。将制造和集成一个低温室，用于对准Liger成像仪和测试探测器组件。与此同时，将开发软件，使用最新的MACIE控制器与Teledyne夏威夷-2 RG。该奖项反映了NSF的法定使命，并被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。