CCAT-Prime: science with an ultra-widefield submillimeter observatory on Cerro Chajnantor
CCAT-Prime: science with an ultra-widefield submillimeter observatory on Cerro Chajnantor
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DOI：
10.1117/12.2314031
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发表时间：
2018-07
期刊：
影响因子：
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通讯作者：
G. Stacey;M. Aravena;K. Basu;N. Battaglia;B. Beringue;F. Bertoldi;J. Bond;P. Breysse;R. Bustos-R.
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文献类型：
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作者：
G. Stacey;M. Aravena;K. Basu;N. Battaglia;B. Beringue;F. Bertoldi;J. Bond;P. Breysse;R. Bustos-R.
我们在智利北部Cerro Chajnantor海拔5600米的地方建造了一个新的超宽视场亚毫米天文台，CCAT-prime，我们提出了详细的科学案例，并简要描述了望远镜的设计，地点和第一台光学仪器的计划。我们的科学目标是研究从再电离时代到现在的恒星和星系形成，研究宇宙结构的增长，提高b模式CMB测量的精度，并通过光谱，偏振和宽带调查研究银河系和附近星系的星际介质和恒星形成，波长从200m到2 mm。这些目标是通过我们的两个第一台光学仪器来实现的，一个是基于大视场（FoV）辐射热计的成像仪，称为Prime-Cam（它同时具有相机和成像光谱仪模块），另一个是多光束亚毫米外差光谱仪CHAI。CCAT-prime将具有非常高的表面精度和非常低的系统发射率，因此结合其无与伦比的CCAT站点的宽视场，我们的望远镜/仪器组合非常适合追求这一科学。ccat主望远镜是由Vertex天线技术有限公司设计和建造的。我们预计在2021年春季实现第一次照明。
We present the detailed science case, and brief descriptions of the telescope design, site, and first light instrument plans for a new ultra-wide field submillimeter observatory, CCAT-prime, that we are constructing at a 5600 m elevation site on Cerro Chajnantor in northern Chile. Our science goals are to study star and galaxy formation from the epoch of reionization to the present, investigate the growth of structure in the Universe, improve the precision of B-mode CMB measurements, and investigate the interstellar medium and star formation in the Galaxy and nearby galaxies through spectroscopic, polarimetric, and broadband surveys at wavelengths from 200 m to 2 mm. These goals are realized with our two first light instruments, a large field-of-view (FoV) bolometer-based imager called Prime-Cam (that has both camera and an imaging spectrometer modules), and a multi-beam submillimeter heterodyne spectrometer, CHAI. CCAT-prime will have very high surface accuracy and very low system emissivity, so that combined with its wide FoV at the unsurpassed CCAT site our telescope/instrumentation combination is ideally suited to pursue this science. The CCAT-prime telescope is being designed and built by Vertex Antennentechnik GmbH. We expect to achieve first light in the spring of 2021.