PyCASSO数据库：CALIFA星系空间分辨的恒星星族特性
The PyCASSO database: Spatially resolved stellar population properties for CALIFA galaxies
摘要：
Calar Alto Legacy Integral Field Area（CALIFA）调查是积分场光谱遗留项目的先驱，促进了许多研究，探索星系光学范围内气体和恒星特征空间分辨数据编码的信息。我们描述了一个增值目录的恒星星族属性的CALIFA星系分析与光谱合成代码星光和处理的PyCASSO平台。我们的公共数据库（http：//pycasso.ufsc.br/，镜像在http：//pycasso.iaa.es/）包括445个星系，来自CALIFA数据发布3与COMBO数据。该星表提供了恒星质量表面密度、平均恒星年龄和金属丰度、恒星尘埃衰减、恒星形成率和运动学的地图。个别星系和统计研究的例子应用程序来说明这个数据集的力量。我们重新审视和更新我们自己的一些结果的质量密度径向配置文件和当地的质量金属丰度的关系。我们还展示了如何采用新的调查目录，并显示一个伪施密特-肯尼库特关系完全从恒星连续提取的信息。还示出了与其他数据库的组合。在其他结果中，我们发现一个非常好的协议之间的恒星形成率表面密度来自恒星连续和$\mathrm{H}α$发射。这个公开目录加入了科学界对透明度和可重复性的努力，并将有助于研究人员专注于（或补充他们的研究）CALIFA星系的恒星特性。
英文摘要：
The Calar Alto Legacy Integral Field Area (CALIFA) survey, a pioneer in integral field spectroscopy legacy projects, has fostered many studies exploring the information encoded on the spatially resolved data on gaseous and stellar features in the optical range of galaxies. We describe a value-added catalogue of stellar population properties for CALIFA galaxies analysed with the spectral synthesis code STARLIGHT and processed with the PyCASSO platform. Our public data base (http://pycasso.ufsc.br/, mirror at http://pycasso.iaa.es/) comprises 445 galaxies from the CALIFA Data Release 3 with COMBO data. The catalogue provides maps for the stellar mass surface density, mean stellar ages and metallicities, stellar dust attenuation, star formation rates, and kinematics. Example applications both for individual galaxies and for statistical studies are presented to illustrate the power of this data set. We revisit and update a few of our own results on mass density radial profiles and on the local mass-metallicity relation. We also show how to employ the catalogue for new investigations, and show a pseudo Schmidt-Kennicutt relation entirely made with information extracted from the stellar continuum. Combinations to other databases are also illustrated. Among other results, we find a very good agreement between star formation rate surface densities derived from the stellar continuum and the $\mathrm{H}α$ emission. This public catalogue joins the scientific community's effort towards transparency and reproducibility, and will be useful for researchers focusing on (or complementing their studies with) stellar properties of CALIFA galaxies.
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