The Dark Energy Spectrometer: a potential multi-fiber instrument for the Blanco 4-meter Telescope
The Dark Energy Spectrometer: a potential multi-fiber instrument for the Blanco 4-meter Telescope
复制标题
DOI：
10.1117/12.926451
复制
发表时间：
2012-09
期刊：
影响因子：
--
通讯作者：
J. Marshall;S. Kent;H. Diehl;B. Flaugher;J. Frieman;R. Kron;D. Depoy;M. Colless;W. Saunders;Greg A. Smith;O. Lahav;F. Abdalla;D. Brooks;P. Doel;D. Kirk;J. Annis;Huan Lin;J. Marriner;S. Jouvel;M. Seiffert
中科院分区：
文献类型：
--
作者：
J. Marshall;S. Kent;H. Diehl;B. Flaugher;J. Frieman;R. Kron;D. Depoy;M. Colless;W. Saunders;Greg A. Smith;O. Lahav;F. Abdalla;D. Brooks;P. Doel;D. Kirk;J. Annis;Huan Lin;J. Marriner;S. Jouvel;M. Seiffert
我们描述了暗能量光谱仪（DESpec）的初步设计，这是一种用于塞罗托洛洛美洲天文台（CTIO）的布兰科4米望远镜的光纤馈电光谱仪器概念。DESpec将利用最近为暗能量相机（DECam）部署的基础设施。DESpec将安装在新的DECam主聚焦架上，可与DECam互换，将共享DECam光学校正器，并将具有约4000根自动定位光纤的焦平面，为多个高通量光谱仪提供支持。该仪器的视场为3.8平方度，波长范围约为500<<1000 nm，光谱分辨率为R~3000。DESpec将为暗能量调查和LSST发现的南半球源提供强大的光谱跟踪系统。
We describe the preliminary design of the Dark Energy Spectrometer (DESpec), a fiber-fed spectroscopic instrument concept for the Blanco 4-meter telescope at Cerro Tololo Inter-American Observatory (CTIO). DESpec would take advantage of the infrastructure recently deployed for the Dark Energy Camera (DECam). DESpec would be mounted in the new DECam prime focus cage, would be interchangeable with DECam, would share the DECam optical corrector, and would feature a focal plane with ~4000 robotically positioned optical fibers feeding multiple high-throughput spectrometers. The instrument would have a field of view of 3.8 square degrees, a wavelength range of approximately 500<<1000 nm, and a spectral resolution of R~3000. DESpec would provide a powerful spectroscopic follow-up system for sources in the Southern hemisphere discovered by the Dark Energy Survey and LSST.λ