Title: Herschel Far-IR counterparts of SDSS galaxies: Analysis of commonly used Star Formation Rate estimates Show Chinese title

Title: SDSS星系的赫歇尔远红外对应物：对常用恒星形成率估计的分析

Abstract: We study a hundred of galaxies from the spectroscopic Sloan Digital Sky Survey with individual detections in the Far-Infrared Herschel PACS bands (100 or 160 $\mu$m) and in the GALEX Far-UltraViolet band up to z$\sim$0.4 in the COSMOS and Lockman Hole fields. The galaxies are divided into 4 spectral and 4 morphological types. For the star forming and unclassifiable galaxies we calculate dust extinctions from the UV slope, the H$\alpha$/H$\beta$ ratio and the $L_{\rm IR}/L_{\rm UV}$ ratio. There is a tight correlation between the dust extinction and both $L_{\rm IR}$ and metallicity. We calculate SFR$_{total}$ and compare it with other SFR estimates (H$\alpha$, UV, SDSS) finding a very good agreement between them with smaller dispersions than typical SFR uncertainties. We study the effect of mass and metallicity, finding that it is only significant at high masses for SFR$_{H\alpha}$. For the AGN and composite galaxies we find a tight correlation between SFR and L$_{IR}$ ($\sigma\sim$0.29), while the dispersion in the SFR - L$_{UV}$ relation is larger ($\sigma\sim$0.57). The galaxies follow the prescriptions of the Fundamental Plane in the M-Z-SFR space. Show Chinese abstract

Abstract: 我们研究了来自光谱斯隆数字天空调查的100个星系，在远红外赫歇尔PACS波段（100或160 $\mu$m）有单独检测，并在GALEX远紫外波段至z$\sim$0.4的COSMOS和Lockman Hole区域。 这些星系分为4种光谱类型和4种形态类型。 对于恒星形成和未分类的星系，我们从紫外斜率、H$\alpha$/H$\beta$比例和 $L_{\rm IR}/L_{\rm UV}$比例计算尘埃消光。 尘埃消光与 $L_{\rm IR}$和金属量之间存在紧密相关性。 我们计算SFR$_{total}$并将其与其他SFR估计值（H$\alpha$，UV，SDSS）进行比较，发现它们之间有非常好的一致性，比典型的SFR不确定度更小。 我们研究了质量和金属丰度的影响，发现只有在高质量时对SFR$_{H\alpha}$才有显著影响。 对于活动星系核和复合星系，我们发现SFR与L$_{IR}$之间存在紧密的相关性（$\sigma\sim$0.29），而SFR - L$_{UV}$关系中的离散度更大（$\sigma\sim$0.57）。 这些星系遵循M-Z-SFR空间中基本平面的规范。