The evolution of galaxies is controlled by the star formation within them. It is, therefore, crucial to understand the role played by the environment (e.g. density, metallicity, location) in the formation of molecular clouds and their connection with the star formation that ultimately drives the evolution of their host galaxies. New single-dish surveys of the Milky Way are providing, for the first time, a high spatial resolution view of the structure and properties of molecular gas across the inner and outer Galaxy. These are extremely complementary to ALMA and NOMEA studies of the molecular ISM in local dwarfs and nearby spiral galaxies. In this talk I will provide an overview of the Outer Galaxy High-Resolution Survey (OGHReS), which is a large CO survey of a significant fraction of the outer Galaxy. This survey will broaden our understanding of how environmental conditions shape the formation and evolution of molecular clouds and influence star formation in the Milky Way and will be crucial in underpinning the wealth of results emanating from recent nearby-galaxy studies.
学术报告
报告题目： Star Formation in the Outer Galaxy
报 告 人：Prof. James Urquhart (University of Kent)
报告时间：2024-06-27 16:00:00
报告地点：Hall 212, Astronomy Building
Bio:
Dr James Urquhart graduated from the University of Sussex in 2001 with an MPhys in Physics and Astrophysics. He then studied radio astronomy for his PhD at the University of Kent under the supervision of Professor Glenn J. White, graduating in 2005 with a thesis. James went on to hold postdoctoral positions at the University of Leeds (UK), the Australia Telescope National Facility in Sydney (Australia) and the Max-Planck Institute for Radio Astronomy in Bonn (Germany). In 2015, he moved back to the University of Kent to take up a lectureship in Physics and Astrophysics, becoming the Head of the Centre for Astrophysics and Planetary Science in 2019. During his career, he has had prominent roles in many of the most influential Galactic plane surveys and has made a significant contribution to over 200 refereed papers, particularly in multi-wavelength analysis and the identification and characterisation of high-mass star-forming regions.