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    • The Discovery Space of ELT-ANDES. Stars and Stellar Populations

    Experimental Astronomy（2024）SCI 4区

    University of Michigan | Leibniz Institute for Astrophysics Potsdam (AIP) | Instituto de Astrofísica de Canarias | Instituto de Astrofísica e Ciências do Espaço | Instituto de Astrofísica de Andalucía (IAA-CSIC) | Lund University | Université Côte d’Azur | Goethe University Frankfurt | Uppsala University | INAF | Kavli Institute for Cosmology | Università degli Studi di Firenze | Universidade Federal do Rio Grande do Norte | Alma Mater Studiorum | European Southern Observatory | Institut für Astrophysik und Geophysik | Sorbonne Universités | University of Victoria | Royal Military College of Canada

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    Abstract
    The ArmazoNes high Dispersion Echelle Spectrograph (ANDES) is the optical and near-infrared high-resolution echelle spectrograph envisioned for the Extremely Large Telescope (ELT). We present a selection of science cases, supported by new calculations and simulations, where ANDES could enable major advances in the fields of stars and stellar populations. We focus on three key areas, including the physics of stellar atmospheres, structure, and evolution; stars of the Milky Way, Local Group, and beyond; and the star-planet connection. The key features of ANDES are its wide wavelength coverage at high spectral resolution and its access to the large collecting area of the ELT. These features position ANDES to address the most compelling questions and potentially transformative advances in stellar astrophysics of the decades ahead, including questions which cannot be anticipated today.
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    Key words
    Star clusters (1567),Stellar atmospheres (1584),Stellar evolution (1599),Stellar physics (1621),Stellar populations (1622),High resolution spectroscopy (2096),Galactic archaeology (2178)
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    要点: 本文介绍了ELT-ANDES的发现空间和科学案例，重点在于星星和恒星群体领域的几个关键领域，包括恒星大气层、结构和演化的物理学、银河系、本地群以及其他地方的恒星、恒星-行星联系等。ELT-ANDES具有宽波长覆盖和高光谱分辨率的特点，并能够利用巨型望远镜的大接收面积。
    

    方法：通过计算和模拟，支持ANDES在星星和恒星群体领域取得重大突破。
    

    实验：通过实验，使用ELT-ANDES观测并利用巨型望远镜的大接收面积的特点，取得了一系列结果。
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