中国科学院云南天文台学术报告通知

2026年第40期

报告题目：Next generation photoionization models（新一代光致电离模型）

报告人：金刈非

报告人单位：西湖大学

报告语言：中文

报告时间：2026年8月21日（星期五）10:00-11:00

报告地点：科研3号楼106会议室

报告摘要：

～～～～～～～～～～～～～

Accurate predictions of the physics of interstellar medium are vital for understanding the circumstellar environments. Modeling photoionized regions with complex geometry produces realistic ionization structures within the nebulae, providing the necessary physical predictions to interpret data. 3D photoionization codes built with Monte Carlo techniques provide powerful tools to produce the ionizing radiation field with fractal geometry, which includes the regions ionized by both stellar and diffuse photons. In this talk, we will present a new self-consistent three-dimensional photoionization code -- Messenger Monte-Carlo MAPPINGS V (M^3), which is designed for modeling nebulae in arbitrary three-dimensional geometries. We will present nebula models with complex geometries created by M^3, and will further show how nebular geometry influences the ionizing radiation field and emission-line ratios.

～～～～～～～～～～～～～

报告人简介：

Yifei Jin now is a Postdoctoral researcher at Westlake University. He obtained his PhD from the Australian National University and was a Postdoctoral researcher at CfA from 2024-2025. Yifei’s research covers the interplay between star and gas, especially the turbulent interstellar medium, chemical enrichment and the ionization processes around star/star clusters.

云台邀请方：太阳活动与CME研究团组

邀请方联系人：沈呈彩