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 | 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 
 
 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 Jun. 3rd, 2019

The Energy Sources of Superluminous Supernovae


Speaker: Shanqin Wang (Guangxi University)

Venue: Room 2317, SWIFAR Building

Time: 12:30 PM, Monday, 3rd June, 2019


Abstract: 

Supernovae (SNe) are the most brilliant optical stellar-class explosions. Over the past two decades, several optical transient survey projects discovered more than 100 so-called superluminous supernovae (SLSNe) whose peak luminosities and radiated energy are at least an order of magnitude larger than those of normal SNe. According to their optical spectra features, SLSNe have been split into two broad categories of type I that are hydrogen-deficient and type II that are hydrogen-rich. Investigating and determining the energy sources of SLSNe would be of outstanding importance for understanding their stellar evolution and explosion mechanisms. The energy sources of SLSNe can be determined by analyzing their light curves (LCs) and spectra. The most prevailing models accounting for the SLSN LCs are the 56Ni cascade decay model, the magnetar spin-down model, the ejecta-circumstellar medium interaction model and the jet-ejecta interaction model. In this talk, we discuss several energy-source models and their different combinations.


Report PPT:   SWIFAR_lunch_talk_wangshanqin.ppt

附件【SWIFAR_lunch_talk_wangshanqin.ppt已下载
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