论文标题
与Subaru HSC（Wergs）对射电星系进行了广泛而深入的探索。 ix。 Z〜5最过大的区域，由巨大的射电星系居住
A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). IX. The Most Overdense Region at z~5 Inhabited by a Massive Radio Galaxy
论文作者
论文摘要
我们在Z = 4.72，HSC J083913.17+011308.1（HSC J0839+0113）周围围绕高Z射电星系（HZRG）的星系密度环境报告，使用R-DropOut Lyman Break Galaxy（LBG）样本从超级苏联苏皮姆 - cam subaru subaru subaru策略数据中进行了探测。我们发现，HSC J0839+0113位于由R-Dropout星系识别为4.7 Sigma显着性水平的过度密集区域的郊区。 HSC J0839+0113与过度密度区域的峰位置之间的投影距离为0.4个物理MPC，比该时期的典型原始簇半径短。根据扩展的Schechter和Light锥模型的说法，HSC J0839+0113托管的过义区域有望在z = 0时演变为halo> 10^14 msun，高概率> 80％。这些发现表明HSC J0839+0113与原始群集有关。 HSC J0839+0113丰富系统是LBG中最过高的LBG区域，在同一宇宙时期的LBG中，LBG是LBG的。
We report on the galaxy density environment around a high-z radio galaxy (HzRG) at z=4.72, HSC J083913.17+011308.1 (HSC J0839+0113), probed using an r-dropout Lyman break galaxy (LBG) sample from the Hyper Suprime-Cam Subaru Strategic Program data. We find that HSC J0839+0113 resides in the outskirt of an overdense region identified by the r-dropout galaxies at a 4.7 sigma significance level. The projected distance between HSC J0839+0113 and the peak position of the overdense region is 0.4 physical Mpc which is shorter than the typical protocluster radius in this epoch. According to the extended Press Schechter and the light cone models, the HSC J0839+0113-hosted overdense region is expected to evolve into a halo > 10^14 Msun at z=0 with a high probability of >80 %. These findings suggest that HSC J0839+0113 is associated with a protocluster. The HSC J0839+0113 rich-system is the most overdense region of LBGs among the known protoclusters with LBGs in the same cosmic epoch.
