AI 中文总结
该研究介绍罗曼日冕仪偏振模式的观测规划、模拟与数据处理流程,通过corgisim生成HD 172555的HLC模式偏振数据集,用corgidrp处理数据,为后续真实校准产品替换奠定基础。
AI 中文摘要
系外行星的反射光偏振测量可约束并解决大气特性中的简并问题,而对岩屑盘的偏振光观测则能表征尘埃颗粒特性。罗曼日冕仪的尽力偏振模式将借助混合利特日冕仪(HLC)与成形光瞳日冕仪(SPC)执行行星系统的多波长观测。本文概述了罗曼日冕仪偏振模式的观测规划、模拟及数据处理流程。为验证模拟与数据处理的初步效果,研究人员借助corgisim生成了HLC模式下岩屑盘HD 172555的偏振观测序列数据集,所用参数为估算值;同时借助corgidrp完成了数据处理,纳入了所有相关噪声因子与校准产品。目前corgidrp中使用的是模拟校准产品,未来更新将替换为真实的模拟校准产品。
英文摘要
Reflected-light polarimetry of exoplanets constrains and resolves degeneracies in atmospheric properties, while polarized light observations of debris disks enable the characterization of dust-grain properties. The best-effort polarimetric mode of the Roman Coronagraph Instrument will be able to perform multi-wavelength observations of planetary systems using both the Hybrid Lyot Coronagraph (HLC) and the Shaped Pupil Coronagraph (SPC). This paper presents an overview of observation planning, simulations, and data reduction procedures for the polarimetric mode of the Roman Coronagraph. As an initial test of simulation and data reduction, a dataset of polarimetric observing sequences for the debris disk HD 172555 in HLC mode was generated using corgisim with estimated observation parameters, and data reduction was performed using corgidrp, incorporating all relevant noise factors and calibration products. Currently, mock calibration products are used in corgidrp; these will be replaced with simulated calibration products in future updates
Comments11 pages, 8 figures, SPIE ATI 2026 (Copenhagen) conference proceeding