Radio Observations of the Cosmic Evolution of Black Hole and Stellar Mass Growth in Galaxies

泛色宇宙演化调查（COSMOS）为全面研究星系中黑洞和恒星质量的增长提供了理想的基础，其范围远远超出了活动星系核（AGN）增长和恒星形成活动的峰值时代，并特别关注环境和宇宙大尺度结构的影响。十年来，我们一直领导着COSMOS的射电和（亚）毫米观测工作，现在我们打算利用最近授予的COSMOS大型观测项目来解决星系演化的一些突出问题：恒星质量、环境和形态对星系中恒星质量增长的相对重要性是什么，作为宇宙时间的函数？AGN的典型宿主星系特性和质量增长率是什么？它们是如何随时间变化的？无线电识别的AGN在星系中恒星质量增长的调节中的作用是什么？我们的研究将基于新的10厘米观测，整个2平方度的COSMOS场，通过我们的大型（384小时）。JVLA程序。这些前所未有的深度和广度的成像数据将需要仔细的质量保证和新的成像和分析技术的发展。与萨格勒布大学Vernesa Smolcic教授小组密切合作，为这一新数据的技术和科学开发提供资金，为一名有经验的博士后提供资金，专注于agn相关主题和（亚）mm调查数据，为一名博士生提供资金，用于恒星形成方面和JVLA无线电数据分析。

The pan-chromatic Cosmic Evolution Survey (COSMOS) provides the ideal basis to perform a comprehensive study of black hole and stellar mass growth in galaxies, reaching well beyond the peak epoch of active galactic nuclei (AGN) growth and star formation activity, and with particular attention to the influence of environment and the cosmic large scale structure. We have been leading the radio and (sub)mm observational efforts for COSMOS for a decade and we now intend to use of recently awarded large observational programs for COSMOS to address some outstanding issues of galaxy evolution: What is the relative importance of stellar mass, environment, and morphology for stellar mass growth in galaxies as a function of cosmic time? What are the typical host galaxy properties and mass growth rates of AGN, and how do they change over time? What is the role of radio-identified AGN in the regulation of stellar mass growth in galaxies? Our study will be based on new 10 cm observations of the full 2 square degree COSMOS field, facilitated through our large (384 hrs.) JVLA program. These unprecedented deep and wide imaging data will required careful quality assurance and the development of novel imaging and analysis techniques. Funding is requested for the technical and scientific exploitation of this novel data, in close collaboration with the group of Prof. Vernesa Smolcic at the University of Zagreb, for one experienced post-doc to focus on AGN-related topics and the (sub)mm survey data, and for one PhD student for the star formation aspects and JVLA radio data analysis.