The Stellar Observations Network Group - the Prototype
F. Grundahl, J. Christensen-Dalsgaard, H. Kjeldsen, U. G. Jørgensen, T. Arentoft, S. Frandsen, P. Kjærgaard
备注:
To be published in Proc. GONG2008/SOHO21 meeting: Solar-stellar Dynamos as revealed by Helio- and Asteroseismology, eds M. Dikpati, T. Arentoft, I. Gonzalez Hernandez, C. Lindsey and F. Hill, ASP Conf. Ser
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.
The SONG project and the prototype node at Tenerife
SONG(恒星观测网络集团)是一个正在开发的1米级机器人望远镜全球网络。SONG原型不久将在特内里费岛的Observatorio del Teide投入运行,预计2011年12月将首次发光。SONG项目的主要科学目标是对明亮恒星进行星震学研究,并通过精确测量恒星表面运动和亮度变化对系外行星进行跟踪和定性。我们介绍特内里费岛之歌节点及其仪器。
Linking Young Stellar Object Morphology to Evolutionary Stages with Self-Organizing Maps
Universität Wien(维也纳大学);Natural History Museum Vienna(维也纳自然历史博物馆);Université de Genève(日内瓦大学);Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Research Network (HUN-REN)(孔科利天文台,匈牙利研究网络(HUN-REN)地球与天文学研究中心);CSFK, MTA Centre of Excellence(MTA卓越中心天文研究所);Department of Experimental Physics, Institute of Physics, University of Szeged(塞格德大学物理学院实验物理系);HITS gGmbH(海德堡理论研究所)
Antarctic TianMu Staring Observation Project I: Overview and Implementation of the Prototype Telescope
Shanghai Astronomical Observatory, Chinese Academy of Sciences(中国科学院上海天文台);Key Laboratory for Polar Science, MNR, Polar Research Institute of China(自然资源部极地科学重点实验室,中国极地研究中心)
VEGA/CHARA interferometric observations of Cepheids. I. A resolved structure around the prototype classical Cepheid delta Cep in the visible spectral range
Spectral evolution and radial dust transport in the prototype young eruptive system EX Lup
EX Lup是一类前主序星爆发恒星的原型,定义为持续数月的重复爆发。在2008年1月至9月,EX Lup经历了历史上最大的爆发,在可见光下亮了大约4个星等。在以前的研究中,我们发现了正在进行的硅酸盐晶体形成的内盘在爆发期间,但也注意到,测量的结晶度分数开始下降后,源返回到静止相。在这里,我们提出了新的观测10 $μ$米硅酸盐功能,获得了在Paranal天文台的ESTA和VISIR仪器。观测结果表明,在五年内,几乎所有的结晶镁橄榄石都从内盘表面消失了。我们重建这个过程中提出了一系列的参数轴对称辐射转移模型的扩展尘埃云,运输的晶体从地球的区域外盘地区,彗星应该形成。早期的太阳可能也经历了类似的爆发,而形成的星子可能包含了这种爆发产生的结晶硅酸盐物质。最后,我们讨论了多远的尘埃云的位置可以限制未来的JWST观测。
Metrics for Optimization of Large Synoptic Survey Telescope Observations of Stellar Variables and Transients
大型综合巡天望远镜(LSST)将是有史以来最大的时域光度测量。为了最大限度地提高LSST的科学产量的瞬态恒星现象的广泛阵列,有必要优化调查节奏,覆盖范围和深度通过定量指标,专门设计用于表征各种类型的恒星瞬变的时域行为。在本文中,我们提出了基于LSST度量分析框架(MAF)模型(Jones et al. 2014)的三个此类度量。其中两个度量量化了LSST检测非周期性和/或非重现性瞬态事件的能力,以及LSST可靠地测量各种时间尺度的周期性信号的能力。第三个度量提供了一种方法来量化LSST将探测的恒星星族中恒星参数的范围。我们提供的例子使用这些指标,并讨论了一些影响,这些指标的基础上优化的LSST调查恒星变量和瞬变观测。
The Stellar Observations Network Group (SONG) -- A Legacy Archive of Stellar Time-Domain Spectroscopy
Aarhus University(奥胡斯大学);Instituto de Astrofísica de Canarias(加那利天体物理学研究所);Universidad de La Laguna (ULL)(拉帕鲁纳大学);University of Southern Queensland(南昆士兰大学);National Astronomical Observatories, Chinese Academy of Sciences(中国科学院国家天文台);China West Normal University(西华师范大学)