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arXiv 2609.22556astro-ph.IM

WaveDriver的初始建模与测试台可行性研究:用于HWO的激光导星自适应光学系统

Initial modeling and testbed feasibility studies of WaveDriver: a laser guide star AO system for HWO

Dominic F. Sanchez, Benjamin L. Gerard, Peter Waswa, Alex Geringer-Smith, Aditya Sengupta, Alexx Perloff, Michael Messerly, William Moore, Matthew Cook, Paul Pa… 展开作者

Dominic F. Sanchez, Benjamin L. Gerard, Peter Waswa, Alex Geringer-Smith, Aditya Sengupta, Alexx Perloff, Michael Messerly, William Moore, Matthew Cook, Paul Pax, Cesar Laguna, Mathew DeMartino, Kevin Bundy, Rebecca Jensen-Clem, Aaron Lemmer, S. Mark Ammons, Megan Eckart, Lisa Poyneer, Eric Strang

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中文总结 AI 辅助

WaveDriver通过外部激光导星航天器放宽HWO的波前稳定性需求,测试台验证了可行性,并量化了关键误差。

中文摘要 AI 辅助

宜居世界观测站(HWO)将需要比JWST实现的波前稳定性高出100倍以上的性能,这将传统望远镜架构推向皮米级性能极限。WaveDriver是一个任务概念,通过采用与HWO编队飞行的外部激光导星(LGS)航天器来放宽这些约束,从而实现波前传感与控制。高对比度测试台的早期结果证明了使用日冕仪、多个变形镜和一套波前传感器实现所需稳定性的可行性。我们报告了任务设计分析、初始测试台稳定性指标,比较了传感器性能,并提出了一个光学模型,该模型量化了LGS亮度、共轭误差以及由有限信标分离引起的场误差。

英文摘要

The Habitable Worlds Observatory (HWO) will require $>100\times$ greater wavefront stability than achieved by JWST, pushing conventional telescope architectures to picometer-level performance limits. WaveDriver is a mission concept that relaxes these constraints by employing an external laser guide star (LGS) spacecraft flying in formation with HWO to enable wavefront sensing and control. Early results from the High Contrast Testbed demonstrate feasibility of required stability using coronagraphs, multiple deformable mirrors, and a suite of wavefront sensors. We report mission design analyses, initial testbed stability metrics, compare sensor performance, and present an optical model that quantifies LGS brightness, conjugation errors, and field errors arising from finite beacon separation.

发表机构

  • Lawrence Livermore National Laboratory(劳伦斯利弗莫尔国家实验室)
  • University of California Santa Cruz(加州大学圣克鲁兹分校)

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