CAREER: A Portable Solar Adaptive Optics System for High-Resolution Imaging Investigations

职业：用于高分辨率成像研究的便携式太阳能自适应光学系统

• 批准号: 0841440
• 负责人: Deqing Ren
• 金额: $ 54.76万
• 依托单位: The University Corporation, Northridge
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-02-01 至 2015-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0841440&HistoricalAwards=false
• 关键词: CAREER; Portable; Solar; Adaptive; Optics

The PI will develop the first portable solar adaptive optics system (PSAO) at California State University Northridge (CSUN) for scientific observations in the 1 ìm to 4.5 ìm infrared band. He will use the PSAO to perform high-resolution solar imaging with the National Solar Observatory (NSO) 1.5-meter McMath-Pierce telescope (McMP) on Kitt Peak near Tucson, Arizona. The PSAO will take full advantage of the McMP's large aperture and high magnetic sensitivity in the IR. The PSAO will utilize a wave-front sensor and deformable mirror with 120 efficient actuators to efficiently correct for atmospheric turbulence, in order to provide high angular resolution images in the near IR. The expected scientific results will enhance our understanding of the dynamics and structure of small scale magnetic fields on the Sun.The PI also plans to explore and evaluate Multi-Conjugate Adaptive Optics (MCAO) approaches for solar imaging, since this technique provides a large corrected field of view for observing solar active regions. For nighttime astronomy MCAO systems, 3D tomographic wave-front sensing and reconstruction have been difficult problems to solve, since multiple laser guide stars are needed. The Sun, however, provides an excellent opportunity for MCAO tomographic wave-front sensing, since any number of equivalent 'guide stars' can be obtained from sites on the solar disk itself. The PI will use the PSAO's wave-front sensor to measure and reconstruct turbulence-induced wave-front errors at different altitudes, allowing a quantitative performance evaluation of the MCAO technique. Once the PSAO is fully demonstrated, the PI plans to transfer his techniques to the NSO at Kitt Peak and make 50% of PSAO observing time available to the wider solar community. His tomographic wave-front sensing and reconstruction efforts will be important steps forward in developing future solar MCAO technologies for solar telescopes. This project will also integrate research and education through the development of a new Laboratory for High-Resolution Solar Imaging at CSUN. This lab will be used intensively for teaching, training, and technology development at CSUN, and initially involve at least ten undergraduates, three graduate students, and one postdoctoral researcher. This project will provide long-term cross-disciplinary training in physics and astronomy to CSUN students, and the research results will be incorporated into courses taught by the PI. The proposed program will also create a long-term partnership between CSUN and the NSO, which will provide excellent opportunities for additional student training and education at Kitt Peak.

将在加利福尼亚州立大学（CSUN）开发第一个便携式太阳能适应系统（PSAO），以在1°至4.5`MM Infraled Band中使用PSAO与国家太阳能天文台（National Solar Persvatory）进行高分辨率太阳能成像。 NSO）在亚利桑那州图森附近的基特峰上的1.5米长望远镜（MCMP）将利用MCMP的RGE Aperture和IR中的高磁灵敏度。为了有效纠正近红外大气turberence ution图像。观察太阳能活动区域的天文学家MCAO系统的观点，3D层析表 - 前传感和重建是很难解决MCAO层析成像波 - 前传感的问题，因为任何数量一旦PSAO在Kitt Peak上完全证明了他的NSO技术，并在不同的MCAO技术中测量和重建湍流引起的波 - 前误差努力将是对太阳能望远镜的未来太阳能MCAO技术的重要步骤。 ，最初涉及至少十个地下研究生，三名研究生，安德（Ande）的项目通过为CSUN学生提供长期的物理和天文学培训，并将纳入PI的课程中。 CSUN与NSO之间的长期合作关系将为Kitt Peak提供额外的学生培训和教育提供绝佳的机会。