CALIFA, the Calar Alto Legacy Integral Field Area survey - III. Second public data release
CALIFA, the Calar Alto Legacy Integral Field Area survey - III. Second public data release
复制标题
DOI：
10.1051/0004-6361/201220582
复制
发表时间：
2012-10
影响因子：
6.5
通讯作者：
B. Husemann;K. Jahnke;Sebastián F. Sánchez;Sebastián F. Sánchez;D. Barrado;S. Bekeraitė;D. Bomans-D.-Bom
中科院分区：
文献类型：
--
作者：
B. Husemann;K. Jahnke;Sebastián F. Sánchez;Sebastián F. Sánchez;D. Barrado;S. Bekeraitė;D. Bomans-D.-Bom
本文描述了Calar Alto遗留综合油田(Califa)调查的第二次公开数据发布(DR2)。公开了200个天体的数据，包括第一次公开数据发布(DR1)的100个星系。数据是用安装在Calar Alto天文台3.5米望远镜上的积分场光谱仪PMAS/Pak获得的。每个星系有两种不同的光谱设置，(I)覆盖3745-7500 A波长范围的低分辨率V500设置，光谱分辨率为6.0 A(FWHM)；以及(Ii)覆盖3650-4840 A波长范围的中分辨率V1200设置，光谱分辨率为2.3 A(FWHM)。该样品的红移范围在0.005-0.03%之间，在色等图、恒星质量、电离条件和形态类型中具有广泛的性质。数据发布中的所有立方体都使用最新的管道进行了缩减，其中包括改进的分光光度校准、空间配准和空间分辨率。分光光度定标优于6%，空间分辨率中值为2‘’4。第二次发布的数据总共包含超过150万个光谱。
This paper describes the Second Public Data Release (DR2) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. The data for 200 objects are made public, including the 100 galaxies of the First Public Data Release (DR1). Data were obtained with the integral-field spectrograph PMAS /PPak mounted on the 3.5 m telescope at the Calar Alto observatory. Two different spectral setups are available for each galaxy, (i) a low-resolution V500 setup covering the wavelength range 3745-7500 A with a spectral resolution of 6.0 A (FWHM); and (ii) a medium-resolution V1200 setup covering the wavelength range 3650-4840 A with a spectral resolution of 2.3 A (FWHM). The sample covers a redshift range between 0.005 and 0.03, with a wide range of properties in the color-magnitude diagram, stellar mass, ionization conditions, and morphological types. All the cubes in the data release were reduced with the latest pipeline, which includes improved spectrophotometric calibration, spatial registration, and spatial resolution. The spectrophotometric calibration is better than 6% and the median spatial resolution is 2´´ 4. In total, the second data release contains over 1.5 million spectra.