Modelling Low-Mass Star-Forming Galaxies and Determining Galaxy Stellar Mass Function and Star-Forming Rate Density in Simulations

模拟低质量恒星形成星系并在模拟中确定星系恒星质量函数和恒星形成速率密度

• 批准号: 2903370
• 金额: --
• 依托单位: Liverpool John Moores University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2903370
• 关键词: Modelling; Low; Mass; Star; Forming

Detecting and characterizing the low-mass galaxy population is at the frontier of astrophysics research. The observational measurements are particularly challenging because of the typical low surface brightness (SB) of dwarf galaxies. In order to overcome the difficulties and to set a reference to the observational measurements, the latest high-resolution simulations will be made use of in this research. The primary aims of this proposal are: to obtain definitive measurements of the galaxy stellar mass function (GSMF) to the lowest possible masses, and the star-formation ratedensity (SFRD) as a function of mass, and to compare with cosmological-scale observations of field dwarf galaxies using the latest and upcoming surveys. This will test the physics of galaxy formation and evolution in a new regime.

检测和表征低质量星系群是天体物理学研究的前沿。由于矮星系典型的低表面亮度（SB），观测测量特别具有挑战性。为了克服困难并为观测测量提供参考，本研究将利用最新的高分辨率模拟。该提案的主要目标是：获得星系恒星质量函数（GSMF）到尽可能低的质量的明确测量值，以及作为质量函数的恒星形成率密度（SFRD），并与宇宙学尺度的观测结果进行比较使用最新和即将进行的调查来了解外座矮星系。这将在新的体系中测试星系形成和演化的物理学。