IAC Stripe82遗产调查：改进的天空校正图像
The IAC Stripe82 Legacy Survey: improved sky-rectified images
摘要：
IAC Stripe 82 Legacy Survey是SDSS Stripe 82数据（Abazajian等人，2009年）的新补充，特别减少以保留该数据集最微弱的表面亮度特征。该巡天图绘制了南银河帽天球赤道上2.5度宽的条纹（-50 $^{\circ}$ $<$ R.A. $<$ 60 $^{\circ}$，-1.25 $^{\circ}$ $<$ Dec. $<$ 1.25 $^{\circ}$），在所有五个SDSS滤波器（u，g，r，i，z）中具有总共275平方度。新的减少包括一个额外的和更深的频带（rdeep），它是g、r和i频带的组合。Stripe 82数据集的平均可见度约为1 arcsec。平均表面亮度极限为$μ_{lim}$ [3 $σ$，10 $\times$ 10 arcsec $^{2}$ ] = 27.9，29.1，28.6，28.1和26.7 mag arcsec $^{-2}$，分别用于u，g，r，i和z波段。数据的重要深度以及通过非侵略性天空减法策略保留背景（天空+漫射光）特征的重点使该数据集适合于研究低表面亮度宇宙。在本研究报告中，我们提出了一个新的数据发布与改进的天空校正图像。这套新的数据集发布在调查网页上，并向社会公开。
英文摘要：
The IAC Stripe 82 Legacy Survey is a new co-addition of the SDSS Stripe 82 data (Abazajian et al. 2009), especially reduced to preserve the faintest surface brightness features of this data set. The survey maps a 2.5 degree wide stripe along the Celestial Equator in the Southern Galactic Cap (-50$^{\circ}$ $<$ R.A. $<$ 60$^{\circ}$, -1.25$^{\circ}$ $<$ Dec.$<$ 1.25$^{\circ}$) with a total of 275 square degrees in all the five SDSS filters (u,g,r,i,z). The new reduction includes an additional and deeper band (rdeep), which is a combination of g, r and i bands. The average seeing of the Stripe82 dataset is around 1 arcsec. The mean surface brightness limits are $μ_{lim}$[3$σ$,10$\times$10 arcsec$^{2}$] = 27.9, 29.1, 28.6, 28.1 and 26.7 mag arcsec$^{-2}$ for the u, g, r, i and z bands respectively. The significant depth of the data and the emphasis on preserving the characteristics of the background (sky + diffuse light) through a non-aggressive sky subtraction strategy make this dataset suitable for the study of the low surface brightness Universe. In this research note we present a new data release with improved sky-rectified images. This new data-set is published on the survey webpage and is publicly available for the community.
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