학과 세미나

콜로키움

2019년 10월 4일 세미나 공고
2019년 10월 4일 세미나 공고
작성자 천문우주과학과
조회수 474 등록일 2019.10.10

일시:  2019년 10월 4일 금요일 세미나실(기2514호)


연사:  이정우 박사님(산동대학교)

 

제목: EUV and Microwave Studies of a Circular-Ribbon Solar Flare


 

초록:  

 One reason for studying the Sun is that our Sun is so dynamic and occasionally launches the largest eruptions in the solar system to directly influence upon our modern high-tech society. In this regard, understanding physics behind solar eruptions becomes more important than everSolar astronomers often take an approach to measure motions of flaring ribbons in the low solar atmosphere and use them to infer the enigmatic phenomenon of magnetic reconnection taking place in the corona. While a community-wide effort goes on to establish the standard model for solar eruption based the commonly observed two ribbon flares, another type of flares with circularly shaped ribbons are discovered and their atypical behaviors attract many studies. It turns out that the circular ribbon flares occur in a special magnetic configuration to present a truly three-dimensional magnetic reconnection. This talk will show our recent works on a circular ribbon flare with new tools available from EUV and microwave observations, which helped us to learn more about solar eruption.

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