SHAO Colloquium in Astrophysics

Title: Dust properties in protoplanetary disks revealed by mid-infrared spectra
Speaker: 刘尧，西南交通大学副研究员
Time: 6月17日（周三）下午3:00
Venue: 三楼大会议室
Tencent Meeting: 627-652-606

报告摘要：
Dust grains in protoplanetary disks are the building blocks of planets, and characterizing their mineralogy and size distribution is crucial for understanding the earliest stages of planet formation. Mid-infrared spectroscopy offers a powerful tool for probing the composition and size of dust grains in the terrestrial planet-forming regions of disks. In this talk, I will present recent studies of dust properties in protoplanetary disks based on observations from Spitzer/IRS and JWST/MIRI. By combining spectral decomposition techniques with radiative transfer modeling, we investigate the mineralogical properties and evolution of dust grains across a range of disk environments and evolutionary stages. I will also discuss ongoing efforts that exploit the unprecedented sensitivity and spectral resolution of JWST to advance our understanding of dust processing and the early evolution of solids in protoplanetary disks.

报告人简介：刘尧，西南交通大学副研究员，博士生导师，四川省级青年人才。曾先后在中国科学院紫金山天文台、德国基尔大学，马克斯普朗克天文研究所和马克斯普朗克地外物理研究所学习和工作。长期从事原行星盘和行星形成相关课题研究。发表学术论文60余篇，主持国家自然科学基金委、江苏省科技厅和四川省科技厅等科研项目。