4MOST spectral data simulation
4MOST spectral data simulation
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4MOST光谱数据模拟
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
P. Laporte
中科院分区：
文献类型：
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作者：
P. Sartoretti;N. Leclerc;J. Walcher;E. Caffau;L. Sbordone;P. Laporte
4MOST是一个非常高的多路复用，宽视场光纤光谱仪系统的VISTA或NTT望远镜的A阶段研究。该仪器的主要目标是补充和完善银河系的信息，盖亚将提供径向速度和化学分析。预计两种分辨率模式（约5000和20000）将同时运行。我们已经开发了一个模拟器的光谱数据的4MOST摄谱仪。该模拟器产生模拟科学光谱，由科学团队进行分析，以限制其要求的可行性，并帮助完善仪器的高水平规格。我们在这里介绍的频谱模拟器，以及如何使用一些模拟结果来定义4MOST的性能。
4MOST is a phase A study of a very high-multiplex, wide-field fibre-fed spectrograph system for the VISTA or NTT telescope. The main stellar goal of the instrument is to complement and complete the informations on the Milky Way, that Gaia will provide both on radial velocity and chemical analysis. Two resolution modes (about 5000 and 20000) are foreseen to operate at the same time. We have developed a simulator of spectral data for the 4MOST spectrograph. This simulator produces mock scientic spectra to be analyzed by the science team in order to constrain the feasibility of their requirements and help refine the high-level specications of the instrument. We present here the spectra simulator and how some of the simulation results are used to define the performances of 4MOST.