CALIFA，卡拉尔阿尔托遗产综合领域调查：早期报告
CALIFA, the Calar Alto Legacy Integral Field Area survey: Early Report
摘要：
Calar Alto Legacy Integral Field Area Survey（CALIFA）CALIFA的主要目标是获得本宇宙中所有哈勃类型的约600个星系的空间分辨光谱信息（0.005< z <0.03）。这次巡天旨在进行三项关键测量：（a）恒星星族的二维图（恒星形成历史、化学元素）;（b）电离气体的激发机制和元素丰度的分布;（c）发射线和吸收线的运动特性（速度场、速度分散）。为了覆盖目标星系的全部光学延伸（即到~23 mag/arcsec 2的3 sigma深度），CALIFA使用了卡拉尔阿尔托天文台3.5米望远镜上PPAK/PMAS IFU的超大视场。我们使用两个光栅设置，一个覆盖3700和5000 AA之间的波长范围在光谱分辨率R~1650，和其他覆盖4300至7000 AA在R~850。该调查分配了210个黑夜，分布在6个学期，从2010年7月开始，由CALIFA合作进行，包括来自8个不同国家的70名天文学家。作为一项遗留调查，经过全面缩减的数据一旦质量得到核实，将可随时提供。我们在这里展示了从迄今为止（21个星系）的数据中获得的早期结果。
英文摘要：
We present the Calar Alto Legacy Integral Field Area survey (CALIFA). CALIFA's main aim is to obtain spatially resolved spectroscopic information for ~600 galaxies of all Hubble types in the Local Universe (0.005< z <0.03). The survey has been designed to allow three key measurements to be made: (a) Two-dimensional maps of stellar populations (star formation histories, chemical elements); (b) The distribution of the excitation mechanism and element abundances of the ionized gas; and (c) Kinematic properties (velocity fields, velocity dispersion), both from emission and from absorption lines. To cover the full optical extension of the target galaxies (i.e. out to a 3sigma depth of ~23 mag/arcsec2), CALIFA uses the exceptionally large field of view of the PPAK/PMAS IFU at the 3.5m telescope of the Calar Alto observatory. We use two grating setups, one covering the wavelength range between 3700 and 5000 AA at a spectral resolution R~1650, and the other covering 4300 to 7000 AA at R~850. The survey was allocated 210 dark nights, distributed in 6 semesters and starting in July 2010 and is carried out by the CALIFA collaboration, comprising ~70 astronomers from 8 different countries. As a legacy survey, the fully reduced data will be made publically available, once their quality has been verified. We showcase here early results obtained from the data taken so far (21 galaxies).
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