NIRSpec 微快门阵列的在轨性能
天体物理仪器与方法
2022-08-10 v1
摘要
詹姆斯·韦伯空间望远镜（JWST）上的 NIRSpec 仪器将首台多目标光谱仪（MOS）带入太空，其由约 250,000 个独立孔径的可编程微快门阵列（MSA）实现。在 6 个月的调试期间，MSA 表现优异，以类科学模式命令快门打开完成了约 800 次重构，平均成功率达约 96%。我们表明，未渐晕快门种群的 82.5% 可用于科学观测，电气短路屏蔽现已成为不可用孔径的主要原因。对此，我们提出在常规运行期间重新检查现有短路的计划，预计将减少受影响快门的数量。我们还对失效打开与失效关闭快门种群进行了全面评估，二者均显示出与地面测试预测相符的微小增长。我们建议修订失效关闭快门标记方案，以提高 MSA 配置规划的灵活性。总体而言，NIRSpec MSA 在调试期间表现非常好，MOS 模式已按期宣布具备科学观测条件。
引用
@article{arxiv.2208.04673,
title = {In-flight performance of the NIRSpec Micro Shutter Array},
author = {Timothy D. Rawle and Giovanna Giardino and David E. Franz and Robert Rapp and Maurice te Plate and Christian A. Zincke and Yasin M. Abul-Huda and Catarina Alves de Oliveira and Katie Bechtold and Tracy Beck and Stephan M. Birkmann and Torsten Böker and Ralf Ehrenwinkler and Pierre Ferruit and Dennis Garland and Peter Jakobsen and Diane Karakla and Hermann Karl and Charles D. Keyes and Robert Koehler and Nimisha Kumari and Nora Lützgendorf and Elena Manjavacas and Anthony Marston and S. Harvey Moseley and Peter Mosner and James Muzerolle and Patrick Ogle and Charles Proffitt and Elena Sabbi and Marco Sirianni and Glenn Wahlgren and Emily Wislowski and Raymond H. Wright and Chi Rai Wu and Peter Zeidler},
journal= {arXiv preprint arXiv:2208.04673},
year = {2022}
}
备注
15 pages, 6 figures, to appear in Proceedings of SPIE conference "Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave"