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작성일 : 17-05-26 13:24
05월 30일(화요일) 우주과학과 세미나 안내(Dr.Philippe LAMY)
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안녕하세요우주과학과 여러분.
이번 세미나는 5 30일 오후 2 00천문대 영상실에서 있습니다.
 
Laboratoire d'Astrophysique de Marseille의 Philippe LAMY 박사님께서 "Coronal Mass Ejection over Solar Cycles 23 and 24: a statistical view"에 관한 강연을 해 주실 예정입니다. 강연은 영어로 진행되며초록은 아래에 나타나있습니다.
 
세미나 참석을 원하시는 분은 세미나 시작 10분 전까지 입실해 주시기 바랍니다.
 
많은 참석 부탁드립니다감사합니다.
 
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Dear Colleagues,
 
There will be an Astronomy and Space Science seminar on 05/30, 2:00 PM, in the Auditorium, Kyung Hee University Astronomical Observatory.
 
Dr. Philippe LAMY  of Laboratoire d'Astrophysique de Marseille  will give a presentation about "Coronal Mass Ejection over Solar Cycles 23 and 24: a statistical view".
 
The language of the seminar will be english and abstract is shown below.
 
 
You are asked to join the seminar five to ten minutes before it starts. Your attendance will greatly be appreciated.
 
 
Thank you.
 
 
Abstract:
 
It is now well established that coronal mass ejections (CMEs) play a major role in the heliosphere, starting from the corona to interplanetary space and interacting with planets, possibly impacting their climate. The almost uninterrupted observations by the LASCO coronagraph onboard SOHO since January 1996 have allowed an unprecended view of CMEs over almost two solar cycles 23 and 24. The ARTEMIS-II catalog based on their automatic detection on high-quality calibrated synoptic maps of the corona offers an unbiased dataset free of selection effects. It is thus possible to perform an unbiased statistical analysis of their properties and investigate how they evolve with solar activity. We will present the results for occurence and mass rates, position angle, angular width, kinetic energy, and mass flux first globally and then separately for the two solar cycles 23 and 24 emphasizing the differences. We further compare the statistical properties of CMEs with those of the standard indices of solar activity such as the international sunspot number (SSN), the sunspot area (SSA) and the radio flux at 10.7 cm (F10.7) as well as those of their potential progenitors, flares and eruptive prominences.