晚型星系在CASSOWARY透镜系统中的演化
The evolution of late-type galaxies from CASSOWARY lensing systems
摘要：
我们探讨了红移在1.5和3.0之间的透镜星系和透镜暗源的性质。我们的样本由9个精心挑选的强透镜星系组成，这些星系是由斯隆数字巡天（SDSS）数据中的CASSOWARY巡天发现的。我们发现，尽管原始SDSS数据的一些限制，透镜系统的均匀样本可以提供一个有用的洞察透镜和源属性。我们还探讨了使用低分辨率数据来建模和分析星系-星系透镜效应的局限性。我们推导出质量和光在拟合透镜轮廓中的相对对准。放大率的范围扩展到5以上，因此我们能够分析潜在的小和低质量的星系在高红移。我们证实了蓝色恒星形成星系的大小-光度关系可能随红移而演化
英文摘要：
We explore the properties of lensing galaxies and lensed faint sources at redshifts between 1.5 and 3.0. Our sample consists of 9 carefully selected strongly-lensed galaxies discovered by the CASSOWARY survey in the Sloan Digital Sky Survey (SDSS) data. We find that, despite some limitations of the original SDSS data, the homogeneous sample of lensing systems can provide a useful insight into lens and source properties. We also explore the limitations of using low-resolution data to model and analyse galaxy-galaxy lensing. We derive the relative alignment of mass and light in fitted lens profiles. The range of magnification extends above 5, hence we are able to analyse potentially small and low-mass galaxies at high redshifts. We confirm the likely evolution of the size-luminosity relation for blue star-forming galaxies as a function of redshift
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