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arXiv 0908.0436astro-ph.SR
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恒星观测网络组-原型

The Stellar Observations Network Group - the Prototype

F. Grundahl, J. Christensen-Dalsgaard, H. Kjeldsen, U. G. Jørgensen, T. Arentoft, S. Frandsen, P. Kjærgaard

摘要:

恒星观测网络组已获得全额资金,用于设计、建造和实施第一个网络节点的原型望远镜和仪器包。我们描述了这样一个节点的布局和它的仪器和径向速度测量的预期性能。该仪器包括一个1米望远镜,配备两台照相机,利用幸运成像技术对微透镜事件进行光度测定,以及一台高分辨率摄谱仪,配备碘池,用于获得类太阳恒星的高精度径向速度,以便进行星震学研究。该望远镜将位于一个直径约4.5米的圆顶内,在其中一个Nasmyth焦点上有两个幸运成像相机,在位于相邻容器内的一个Coud焦点上有摄谱仪和仪器控制计算机。目前,原型望远镜和仪器正在进行详细设计。第一个站点(特内里费岛)的安装预计将于2010年中下旬进行,随后将于2011年进行广泛测试。

英文摘要:

The Stellar Observations Network Group (SONG) has obtained full funding for the design, construction and implementation of a prototype telescope and instrumentation package for the first network node. We describe the layout of such a node and its instrumentation and expected performance for radial-velocity measurements. The instrumentation consists of a 1m telescope, equipped with two cameras for photometry of microlensing events with the lucky-imaging technique and a high-resolution spectrograph equipped with an iodine cell for obtaining high-precision radial velocities of solar-like stars, in order to do asteroseismology. The telescope will be located in a dome of ~ 4.5 m diameter, with two lucky-imaging cameras at one of the Nasmyth foci and the spectrograph and instrument control computers at a Coud{é} focus, located in an adjacent container. Currently the prototype telescope and instrumentation are undergoing detailed design. Installation at the first site (Tenerife) is expected during mid-late 2010, followed by extensive testing during 2011.

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