AI 中文总结
该研究针对SPHEREx飞行数据中的低级电子伪影，总结了其对宇宙射线、串扰等图像空间伪影的理解，提出了对应的缓解与掩蔽策略，并评估了对其他使用HAWAII-2RG探测器的空间任务的影响。
AI 中文摘要
SPHEREx是NASA的全天分光光度测量巡天任务，从低地球轨道利用六个HAWAII-2RG探测器的定制读出，以6.15角秒的分辨率在0.75微米至5.0微米的102个光谱通道绘制天图。SPHEREx仪器团队与科学数据中心已构建了一套稳健的科学数据流水线，其中包含缓解由低级光学和电子效应产生的图像空间伪影的步骤。对首次巡天飞行数据的分析证实了部分此类效应的预测，确定了实验室与飞行预测在其他效应上的差异，甚至发现了未预料到的新伪影。本文将总结当前对SPHEREx图像中伪影的理解，包括由宇宙射线、串扰及无响应像素产生的图像空间伪影，还将介绍为缓解此类效应所实施的缓解和/或掩蔽策略，以及对其他使用HAWAII-2RG探测器的空间任务可能产生的影响的评估。
英文摘要
SPHEREx, NASA's all-sky spectrophotometric survey mission, maps the sky in 102 spectral channels from 0.75 um to 5.0 um at 6.15'' resolution from low-Earth orbit using a custom readout of six HAWAII-2RG detectors. The SPHEREx instrument team and Science Data Center have built a robust science data pipeline that includes mitigating image-space artifacts arising from low-level optical and electronic effects. Analysis of first-survey flight data has confirmed predictions for some of these effects, determined differences between the laboratory and flight predictions in others, and even found new artifacts that were unanticipated. This paper will summarize our current understanding of artifacts in SPHEREx images, including image-space artifacts resulting from cosmic rays, crosstalk and unresponsive pixels. We also present mitigation and/or masking strategies implemented to mitigate such effects, and an assessment of the possible implications for other space missions using HAWAII-2RG detectors.
Comments18 pages, 11 figures, in Proc. SPIE Space Telescopes and Instrumentation 2026: Optical, Infrared and Millimeter Wave, 14145
Journal refProc. SPIE 14145, Space Telescopes and Instrumentation 2026: Optical, Infrared, and Millimeter Wave, 141453T (21 Aug 2026)
