The MAGPI Survey -- science goals, design, observing strategy and early results
The MAGPI Survey -- science goals, design, observing strategy and early results
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MAGPI 调查——科学目标、设计、观测策略和早期结果
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发表时间：
2020
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通讯作者：
L. Zanisi
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作者：
C. Foster;J. Mendel;C. Lagos;E. Wisnioski;T. Yuan;F. D'Eugenio;T. Barone;K. Harborne;S. Vaughan;F. Schulze;R. Remus;A. Gupta;F. Collacchioni;D. J. Khim;P. Taylor;R. Bassett;S. Croom;R. McDermid;A. Poci;A. Battisti;J. Bland;S. Bellstedt;M. Colless;L. Davies;S. Driver;A. Ferré;D. Fisher;E. Gjergo;E. Johnston;A. Khalid;C. Kobayashi;S. Oh;Y. Peng;A. Robotham;S. Sweet;E. Taylor;K. Tran;J. Trayford;J. V. D. Sande;S. Yi;L. Zanisi
本文介绍了欧洲南方天文台甚大望远镜上的一个大型项目——积分场光谱（MAGPI）调查对中世纪星系特性的概述。MAGPI旨在研究3-4 Gyr回看时间下星系转变的物理驱动因素，在此期间，星系的动力学、形态学和化学性质将发生显著变化。该调查使用了新的中深自适应光学辅助多单位光谱探测器（MUSE）观测和来自星系和质量集合（GAMA）调查的公开紫外到红外成像的组合。有了这些数据，MAGPI将绘制60个质量（$> 7 \乘以10^{10}M_\odot$）中心星系在$0.25 < z <0.35$的代表性环境范围内的恒星和电离气体的运动学和化学性质。MUSE使用地面层自适应光学（GLAO, 0.6-0.8美元arcsec FWHM）提供的空间分辨率将有助于与附近宇宙的积分场光谱调查（如SAMI和MaNGA）进行直接比较，并使用自适应光学进行更高的红移。除了主星系（中央）样本外，MAGPI还将提供多达150个卫星星系在$0.25 < z <0.35$的分辨光谱和未分辨光谱，以及数百个$z < 6$的发射线源。本文概述了MAGPI的科学目标、调查设计和观测策略。我们还首先介绍了MAGPI数据，以及MAGPI数据将与当前一代宇宙流体动力学模拟（包括EAGLE， Magneticum， HORIZON-AGN和Illustris-TNG）进行比较的理论框架。
We present an overview of the Middle Ages Galaxy Properties with Integral Field Spectroscopy (MAGPI) survey, a Large Program on the European Southern Observatory Very Large Telescope. MAGPI is designed to study the physical drivers of galaxy transformation at a lookback time of 3-4 Gyr, during which the dynamical, morphological, and chemical properties of galaxies are predicted to evolve significantly. The survey uses a combination of new medium-deep adaptive optics aided Multi Unit Spectroscopic Explorer (MUSE) observations and publicly available ultraviolet-to-infrared imaging from the Galaxy And Mass Assembly (GAMA) survey. With these data, MAGPI will map the kinematic and chemical properties of stars and ionised gas for a sample of 60 massive ($> 7 \times 10^{10} M_\odot$) central galaxies at $0.25 < z <0.35$ in a representative range of environments. The spatial resolution delivered by MUSE with Ground Layer Adaptive Optics (GLAO, $0.6-0.8$ arcsec FWHM) will facilitate a direct comparison with Integral Field Spectroscopy surveys of the nearby Universe, such as SAMI and MaNGA, and at higher redshifts using adaptive optics. In addition to the primary (central) galaxy sample, MAGPI will deliver resolved and unresolved spectra for as many as 150 satellite galaxies at $0.25 < z <0.35$, as well as hundreds of emission-line sources at $z < 6$. This paper outlines the science goals, survey design, and observing strategy of MAGPI. We also present a first look at the MAGPI data, and the theoretical framework to which MAGPI data will be compared using the current generation of cosmological hydrodynamical simulations including EAGLE, Magneticum, HORIZON-AGN, and Illustris-TNG.