The E-ELT first light spectrograph HARMONI: capabilities and modes
The E-ELT first light spectrograph HARMONI: capabilities and modes
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E-ELT 首款光谱仪 HARMONI：功能和模式
DOI：
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发表时间：
2016
期刊：
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通讯作者：
M. Larrieu
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作者：
N. Thatte;F. Clarke;I. Bryson;Hermine Shnetler;M. Tecza;T. Fusco;R. Bacon;J. Richard;E. Mediavilla;B. Neichel;S. Arribas;B. García;C. Evans;A. Remillieux;Kacem El Madi;J. Herreros;D. Melotte;K. O’Brien;I. Tosh;J. Vernet;P. Hammersley;D. Ives;G. Finger;R. Houghton;D. Rigopoulou;J. Lynn;Jamie R. Allen;S. Zieleniewski;S. Kendrew;Vanessa Ferraro;A. Pécontal;J. Kosmalski;F. Laurent;M. Loupias;L. Piquéras;E. Renault;J. Blaizot;E. Daguisé;J. Migniau;A. Jarno;Andrew J. Born;A. Gallie;D. Montgomery;D. Henry;N. Schwartz;W. Taylor;G. Zins;L. Rodríguez;M. Cágigas;G. Battaglia;R. Rebolo López;E. Hernández Suárez;José Vincente Gigante;Javier Piqueras López;Montserrat Villa Martin;C. Correia;S. Pascal;L. Blanco;P. Vola;B. Épinat;C. Péroux;A. Vigan;K. Dohlen;J. Sauvage;Martin Lee;A. Carlotti;C. Vérinaud;T. Morris;R. Myers;A. Reeves;M. Swinbank;A. Calcines;M. Larrieu
HARMONI是E-ELT的第一台可见光和近红外积分场摄谱仪。它将提供四种不同的空间尺度，从最适合观察有限观测的60 × 30质量的粗spaxels到奈奎斯特采样E-ELT在近红外波长的衍射极限点扩散函数的4质量spaxels。每个光谱刻度可与11个光谱设置组合，提供一系列光谱分辨率（R ~3500、7500和20000）和跨越仪器0.5 - 2.4 μm波长范围的瞬时波长覆盖。2015年秋季，HARMONI项目开始了初步设计阶段，在欧洲南方天文台和英国科学技术设施理事会之间签署了设计，建造，测试和调试仪器的合同。至关重要的是，该合同还包括HARMONI激光断层自适应光学系统的初步设计。在签署合同之前，已最后确定了仪器的技术规格。在本文中，我们报告的初步设计期间进行的第一项活动，定义的基线架构的系统，并权衡研究导致基线的选择。
HARMONI is the E-ELT’s first light visible and near-infrared integral field spectrograph. It will provide four different spatial scales, ranging from coarse spaxels of 60 × 30 mas best suited for seeing limited observations, to 4 mas spaxels that Nyquist sample the diffraction limited point spread function of the E-ELT at near-infrared wavelengths. Each spaxel scale may be combined with eleven spectral settings, that provide a range of spectral resolving powers (R ~3500, 7500 and 20000) and instantaneous wavelength coverage spanning the 0.5 – 2.4 μm wavelength range of the instrument. In autumn 2015, the HARMONI project started the Preliminary Design Phase, following signature of the contract to design, build, test and commission the instrument, signed between the European Southern Observatory and the UK Science and Technology Facilities Council. Crucially, the contract also includes the preliminary design of the HARMONI Laser Tomographic Adaptive Optics system. The instrument’s technical specifications were finalized in the period leading up to contract signature. In this paper, we report on the first activity carried out during preliminary design, defining the baseline architecture for the system, and the trade-off studies leading up to the choice of baseline.