甚大望远镜的高分辨率光谱仪 ANDES：日冕仪模块的模拟性能及系外行星观测的高对比度能力概述
ANDES, the high-resolution spectrograph of the ELT: simulated performance of the CORO module and overview of the high-contrast capabilities for exoplanet observations
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中文总结 AI 辅助
介绍了 ANDES 高分辨率光谱仪日冕仪模块，其能结合高对比度成像与高色散光谱学研究系外行星特性，详细阐述设计、特征及模拟性能，展示初步模拟结果并讨论表征操作，以评估其对系外行星大气特征的探测能力。
中文摘要 AI 辅助
我们展示了甚大望远镜（ELT）的高分辨率光谱仪 ANDES 的日冕仪（CORO）模块的模拟性能。ANDES 旨在解决广泛的科学案例，包括系外行星大气特征描述。预计 2035 年首次亮相，其仪器基线是模块化光纤馈送阶梯光谱仪，有可见和近红外超稳定光谱臂，光谱范围 0.4 - 1.8μm，分辨率高达 100,000。它还包括积分场单元（IFU）模式和可插入的 CORO 模块，能结合高对比度成像和高色散光谱学研究系外行星特性。本文详细介绍了 ANDES CORO 设计、主要特征及其在存在单共轭自适应光学（SCAO）残余误差情况下的模拟性能，以高空间分辨率和前所未有的角分辨率通过光谱成像仪模式探测系外行星大气。我们展示了使用 ANDES 性能展开（APU）工具得到的关于预测对比度和预期探测性能的初步模拟结果，还将讨论仪器的表征操作以评估 ANDES 检测与系外行星大气特征相关原子和分子特征的能力。
英文摘要
We present the simulated performance of the coronagraph (CORO) module for ANDES, the Extremely Large Telescope (ELT) high-resolution spectrograph. ANDES aims to address a broad range of science cases, including the characterization of the atmosphere of exoplanets. With a first light envisioned by 2035, the instrument baseline features a modular fiber-fed echelle spectrograph with visible and near-infrared ultra-stable spectral arms to provide a simultaneous spectral range of 0.4-1.8\,$μ$m with a spectral resolving power up to 100,000. ANDES also includes an Integral Field Unit (IFU) mode-fed by a single-conjugate adaptive optics (SCAO) module and an insertable CORO module, enabling the combination of high-contrast imaging and high-dispersion spectroscopy (R=100,000) for the study of exoplanet properties. In this contribution, the ANDES CORO design, its main features and its simulated performance are detailed in the presence of SCAO residual errors to probe exoplanet atmospheres with the spectro-imager mode at high-spatial resolution and with unprecedented angular resolution. We show the preliminary simulation results on the predicted contrast and the expected detection performance with ANDES performance unfolded (APU), the simulation tool to determine the yield of exoplanets that will be detected in emitted and possibly reflected light. The characterization operation of the instrument will be discussed to assess the ANDES ability to detect atomic and molecular signatures connected to the exoplanet atmosphere characteristics.
