AIROPA: Off-axis adaptive optics PSF reconstruction in simulation, on-bench, and on-sky.
AIROPA: Off-axis adaptive optics PSF reconstruction in simulation, on-bench, and on-sky.
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AIROPA：在模拟、实验室和空中进行离轴自适应光学 PSF 重建。
DOI：
10.1117/12.2630629
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Witzel, Gunther
中科院分区：
文献类型：
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作者：
Lu, Jessica;Terry, Sean;Turri, Paolo;Ciurlo, Anna;Gautam, Abhimat;Do, Tuan;Ghez, Andrea;Hosek, Matthew;Witzel, Gunther
结论AIROPA的Variable-PSF模式在光度精度和视野均匀度方面有显著提高。然而，天文测量精度和星载图像残差仍然有轻微的改善。这些限制可能来自使用校准光纤不准确地校准依赖于场的仪器像差，这些校准光纤不通过望远镜，只有光学系统。我们计划进行空中相位多样性测量，以评估空中校准与台式校准。我们还在扩展AIROPA以处理OSIRIS图像和光谱。最终，AIROPA将与轴上PSF重建相结合，作为KAPA的一部分，为所有OSIRIS科学图像提供空间可变的PSF模型。
ConclusionsAIROPA’s variable-PSF mode shows significant improvements in photometric accuracy and uniformity over the field. However, the astrometric accuracy and the on-sky image residuals still show marginal improvement. The limitations likely come from inaccurate calibration of field-dependent instrumental aberrations using calibration fibers that do not send light through the telescope, only the AO system.We plan to conduct on-sky phase diversity measurements to evaluate the on-sky vs. bench calibrations. We are also extending AIROPA to work with OSIRIS images and spectra. Ultimately, AIROPA will be combined with on-axis PSF reconstruction as part of KAPA to deliver spatially variable PSF models for all OSIRIS science images.