论文标题
部分可观测时空混沌系统的无模型预测
Simulating the performance of aperture mask designs for SCALES
论文作者
论文摘要
当成像具有小角度大小的中等对比度源时（例如，近距离球形球星和遥远的年轻恒星周围的中心磁盘），诸如孔径掩蔽之类的干涉技术具有增强空间分辨率的潜力。切片机与目前正在开发的系外行星光谱仪（尺度）仪器的一系列镜头相结合，是一部透镜积分光谱仪，它将使W. M. Keck天文台能够对2至5微米之间的外孢菌进行高对比度直接成像。我们通过测试通过几种掩码设计可实现的对比度来探索孔掩蔽对量表的潜在优势。 Scalessim软件包用于模拟M，L和K频段中波长的观测值，并具有光路差（OPD）地图，用于模拟现实的Keck Adaptive Optics性能。天体物理和工具源的噪声也用于模拟信号。根据产生的对比曲线的深度评估掩模设计。
Interferometric techniques such as aperture masking have the potential to enhance spatial resolution capabilities when imaging moderate-contrast sources with small angular size, such as close-in exoplanets and circumstellar disks around distant young stars. The Slicer Combined with an Array of Lenslets for Exoplanet Spectroscopy (SCALES) instrument, currently under development, is a lenslet integral field spectrograph that will enable the W. M. Keck Observatory to carry out high-contrast direct imaging of exoplanets between 2 and 5 microns. We explore the potential benefit of aperture masking to SCALES by testing the contrast achievable by several mask designs. The scalessim software package was used to simulate observations at wavelength bins in the M, L, and K bands, with optical path difference (OPD) maps used to simulate realistic Keck adaptive optics performance. Noise from astrophysical and instrumental sources was also applied to simulated signals. Mask designs were assessed based on depth of the generated contrast curves.
