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

基于深部成像数据的早期宇宙星系形成与演化研究

• 批准号: 23740159
• 负责人: FURUSAWA Hisanori
• 金额: $ 2.5万
• 依托单位: National Astronomical Observatory of Japan
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23740159/
• 关键词: 遠方銀河; 銀河進化; 宇宙論

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.

我们使用Subaru/Suprime-Cam在2平方度的空白区域进行非常深的成像。结合光学数据和公开的近红外成像数据，我们总共探测到6个红移为7的恒星形成星系候选者。结果表明，所得的星系紫外光度函数可以很好地拟合传统的Schechter函数或双幂律函数，在0。在新增加的亮端样本的帮助下，这个宇宙时代的3千兆年。

项目成果

Discovery of bright z=7 galaxies in the UltraVISTA survey

UltraVISTA 巡天发现明亮的 z=7 星系

• 发表时间: 2012
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Bowler;R. A. A.;Dunlop;J. S.;McLure;R. J.;McCracken;H. J.,Milvang-Jensen;B.;Furusawa;H.;Fynbo;J. P. U.;Le Fevre;0.;Holt;J.;Ideue;Y.;Ihara;Y.;Rogers;A. B.;and Taniguchi;Y.
• 通讯作者: Y.