云南大学中国西南天文研究所

 首页 Home | 研究所简介 SWIFAR | 人员 People | 科学研究 Science | 科研设备 Facilities | 学术活动 Activities | 人才培养 Education | 国际合作 Collaborations | 科学普及 Outreach | 诚聘英才 Recruitment | 访问指南 For Visitors 
 
 首页 Home 
 研究所简介 SWIFAR 
 人员 People 
 科学研究 Science 
 学术活动 Activities 
 人才培养 Education 
 科学普及 Outreach 
 诚聘英才 Recruitment 
 访问指南 For Visitors 
 内部链接 Internal 
 
  过往活动 Past Events
当前位置: 首页 Home>>过往活动 Past Events>>正文
 

Lunch talk on Nov. 30, 2020

A radio HR diagram toward the SKA: Radio emission of OB, Be stars and ultra-compact HII region


Speaker: Bin Yu(BNU)

Venue: Video conference

Time: 12:30 PM, Monday, Nov. 30, 2020

Abstract: 

The SKA will be the most sensitive radio survey instrument ever built. This makes it hard to predict what it will actually detect, as we have never observed to such faint levels. The uncertainty is especially true within the Galaxy where a multitude of objects will contribute to the radio emission. This project aims to model the stellar radio emission of the Milky Way down to nano-Jy levels, focusing on the radio emission from the stars. The radio emission includes ionized winds, HII regions, the radio photospheres of cool giants, interacting binaries such as symbiotic stars, and flare stars. A radio HR diagram will be constructed, covering high-mass O/B stars, with radio emission from HII regions and stellar winds, WR stars, to low-mass post-AGB stars and planetary nebulae. The distribution of stars in the galaxy is modelled using the Besancon computer model. The project will show what the SKA may expect to see in different directions within the Milky Way.


关闭窗口

版权所有:云南大学中国西南天文研究所 

South-Western Institute For Astronomy Research, YNU