Study on galaxy formation and evolution at the early universe based on deep imaging data

我们使用Subaru/ prime- cam对2平方度的空白区域进行深度成像。结合光学数据和公开的近红外成像数据，我们共探测到6个红移7的恒星形成星系候选者。结果表明，用常规的Schechter函数或双幂律函数都能很好地拟合星系的紫外光度函数，在0。在新增加的亮端样本的帮助下，这个宇宙时代的3千亿年。

We perform very deep imaging over 2 square degree blank fields with Subaru/Suprime-Cam. Combining the optical data with publicly available near-infrared imaging data, we detect in total 6 candidates of star-forming galaxies at redshift 7. It is shown that the resultant UV luminosity function of galaxies are well fitted by either of the conventional Schechter function or a double-power law function, with no significant evolution in the bright end during 0. 3 Giga-years of this cosmic era, with the aid of the newly added bright-end sample.