CALIFA, the Calar Alto Legacy Integral Field Area survey : I. Survey presentation
CALIFA, the Calar Alto Legacy Integral Field Area survey : I. Survey presentation
复制标题
CALIFA，卡拉阿尔托传统综合野外区域调查：I 调查演示
DOI：
10.1051/0004-6361/201117353
复制
发表时间：
2012
影响因子：
6.5
通讯作者：
Wisotzki)
中科院分区：
文献类型：
--
作者：
Sanchez;Kennicutt;Gil de Paz;et al. (+ Husemann;Wisotzki)
星系在宇宙时间中演化的最终产物是本宇宙中星系的数量。这些星系也是那些可以最详细地研究的星系，从而为我们理解星系演化提供了严格的基准。通过光谱单纤维的巨大成功，在过去的十年中，对本机宇宙的统计调查，它已经变得很清楚，然而，一个权威的星系观测描述将涉及测量它们的空间分辨特性在其整个光学范围内的统计显着的样本。我们在这里介绍的卡拉尔阿尔托遗产积分领域（CALIFA）的调查，这已经被设计为在这个方向上提供了第一步。我们总结了调查的目的和设计，包括样本选择和观察策略。我们还展示了在第一次观测运行（2010年6月/7月）期间获得的数据，并概述了减少管道，质量控制计划和减少数据的一般特征。这次巡天是为了获得局部宇宙（0.005 <z< 0.03）中约600个星系的直径选定样本的空间分辨光谱信息。CALIFA的设计是为了能够绘制下列数量的二维图：（a）恒星群：年龄和金属丰度;（B）电离气体：分布、激发机制和化学丰度;（c）运动学特性：恒星和电离气体成分。CALIFA采用PPAK积分场单元（IFU），六边形视场约为1.3 "，通过采用三点抖动方案实现100%覆盖因子。光学波长范围覆盖从3700到7000 nm，使用两个重叠的设置（V500和V1200），具有不同的分辨率：R~ 850和R ~ 1650，分别。CALIFA是一项针对社区的遗产调查。一旦质量得到保证，将公布缩减后的数据。在一系列质量检查和探索性分析的基础上，分析的数据满足原始观测方案的预期：（i）对于V500光栅数据，最终数据立方体达到~23.0 mag/arcsec 2的3σ极限表面亮度深度（V1200约为22.8 mag/arcsec 2）;（ii）约70%的覆盖视场高于3σ极限;（iii）数据在大多数波长范围内具有百分之几的蓝-红相对通量校准;（iv）相对于SDSS，绝对通量校准的精度在~ 8%以内;（v）对于V1200，测量的光谱分辨率为~85 km s-1（V500约为150 km s-1）;（vi）V1200数据波长校准的估计精度约为5 km s-1（~10 km s-1的V500数据）;（vii）孔径匹配CALIFA和SDSS光谱定性和定量相似。最后，我们表明，我们能够进行上述所有的测量，恢复的性质的恒星人口，电离气体和运动学的两个组成部分。相关的地图说明了这些参数在整个领域的空间变化，重新强调单孔径光谱测量的红移依赖。我们得出结论，从这第一次看的数据，CALIFA将是一个重要的资源，在本地宇宙的星系考古研究。
The final product of galaxy evolution through cosmic time is the population of galaxies in the local universe. These galaxies are also those that can be studied in most detail, thus providing a stringent benchmark for our understanding of galaxy evolution. Through the huge success of spectroscopic single-fiber, statistical surveys of the Local Universe in the last decade, it has become clear, however, that an authoritative observational description of galaxies will involve measuring their spatially resolved properties over their full optical extent for a statistically significant sample. We present here the Calar Alto Legacy Integral Field Area (CALIFA) survey, which has been designed to provide a first step in this direction. We summarize the survey goals and design, including sample selection and observational strategy. We also showcase the data taken during the first observing runs (June/July 2010) and outline the reduction pipeline, quality control schemes and general characteristics of the reduced data. This survey is obtaining spatially resolved spectroscopic information of a diameter selected sample of ~600 galaxies in the Local Universe (0.005 <z< 0.03). CALIFA has been designed to allow the building of two-dimensional maps of the following quantities: (a) stellar populations: ages and metallicities; (b) ionized gas: distribution, excitation mechanism and chemical abundances; and (c) kinematic properties: both from stellar and ionized gas components. CALIFA uses the PPAK integral field unit (IFU), with a hexagonal field-of-view of ~1.3⎕′, with a 100% covering factor by adopting a three-pointing dithering scheme. The optical wavelength range is covered from 3700 to 7000 Å, using two overlapping setups (V500 and V1200), with different resolutions:R~ 850 andR~ 1650, respectively. CALIFA is a legacy survey, intended for the community. The reduced data will be released, once the quality has been guaranteed. The analyzed data fulfillthe expectations of the original observing proposal, on the basis of a set of quality checks and exploratory analysis: (i) the final datacubes reach a 3σlimiting surface brightness depth of ~23.0 mag/arcsec2for the V500 grating data (~22.8 mag/arcsec2for V1200); (ii) about ~70% of the covered field-of-view is above this 3σlimit; (iii) the data have a blue-to-red relative flux calibration within a few percent in most of the wavelength range; (iv) the absolute flux calibration is accurate within ~8%with respect to SDSS; (v) the measured spectral resolution is ~85 km s-1for V1200 (~150 km s-1for V500); (vi) the estimated accuracy of the wavelength calibration is ~5 km s-1for the V1200 data (~10 km s-1for the V500 data); (vii) the aperture matched CALIFA and SDSS spectra are qualitatively and quantitatively similar. Finally, we show that we are able to carry out all measurements indicated above, recovering the properties of the stellar populations, the ionized gas andthe kinematics of both components. The associated maps illustrate the spatial variation of these parameters across the field, reemphasizing the redshift dependence of single aperture spectroscopic measurements. We conclude from this first look at the data that CALIFA will be an important resource for archaeological studies of galaxies in the Local Universe.
登录
查看更多内容
DOI：
10.1088/0004-6256/136/3/1325
发表时间：
2008-06
期刊：
arXiv: Astrophysics
影响因子：
--
作者：
M. Molés;N. Benı́tez;J. Aguerri;E. Alfaro;T. Broadhurst;J. Cabrera-Cano;F. Castander;J. Cepa;M. Cerviño;D. Cristóbal-Hornillos;A. Fernández-Soto;R. Delgado;L. Infante;I. Márquez;V. Martínez;J. Masegosa;A. Olmo;J. Perea;F. Prada;J. Quintana;Samuel Sanchez
通讯作者：
M. Molés;N. Benı́tez;J. Aguerri;E. Alfaro;T. Broadhurst;J. Cabrera-Cano;F. Castander;J. Cepa;M. Cerviño;D. Cristóbal-Hornillos;A. Fernández-Soto;R. Delgado;L. Infante;I. Márquez;V. Martínez;J. Masegosa;A. Olmo;J. Perea;F. Prada;J. Quintana;Samuel Sanchez
积分场光谱中的微分大气折射：影响和校正 - IFS 中的大气折射
DOI：
10.1051/aas:1999463
发表时间：
1999
期刊：
Astronomy & Astrophysics Supplement Series
影响因子：
--
作者：
S. Arribas;E. Mediavilla;B. García;C. D. Burgo;J. J. Fuensalida
通讯作者：
J. J. Fuensalida
含有热气体的早期型星系的 H-α 图像
DOI：
10.1086/115794
发表时间：
1991
期刊：
The Astronomical Journal
影响因子：
--
作者：
G. Trinchieri;S. D. Alighieri
通讯作者：
S. D. Alighieri
局部发光致密蓝色星系的 3D 光谱：NGC 7673 的运动学
DOI：
10.1111/j.1365-2966.2009.15989.x
发表时间：
2009
影响因子：
4.8
作者：
J. P'erez;R. Guzm'an;Á. Castillo;F. Castander;J. Gallego;C. A. Garland;N. Gruel;D. Pisano;S. S'anchez;J. Z. D. O. Astronomy;University of Cambridge Instituto de Astrof'isica de Canarias Astrof'isica;Universidad Complutense de Madrid Institut de Ciencies de l'Espai;Universitat Autonoma de Barcelona Department of Natural Sciences;Cas Department of Physics;West Virginia University Centro Astron'omico Hispano Alem'an
通讯作者：
West Virginia University Centro Astron'omico Hispano Alem'an
使用积分场光谱解耦 I 型 AGN 的宿主光谱和核光谱：3C 120 的测试
影响因子：
6
作者：
S. Sánchez;B. García;K. Jahnke;E. Mediavilla;J. Gonzalez;L. Christensen;L. Wisotzki
通讯作者：
L. Wisotzki