세종대학교 두드림 비교과통합관리시스템

물리천문학과 콜로퀴움

‧강연 제목 : The formation process of the Galactic OB associations

‧연사 : 공주대학교 지구과학교육과 임범두 교수님

‧일시 : 2022년 5월 25일 (수요일) 17:00~18:30

‧진행 방법 : 온라인 웹엑스로 진행

‧신청 가능 대상 : 세종대학교 재학생 누구나

‧신청기간 : 5/23 월 18:00 ~ 5/25 수 12:00

‧상세 내용은 물리천문학과 홈페이지를 참고하세요. 

  http://home.sejong.ac.kr/~phyastrodpt/9.html  

‧강의 초록

OB associations are large stellar systems composed of groups of young stars spread over several tens of parsecs. They are the prime sites of star formation in galaxies. More than one stellar cluster and distributed stellar populations are found in such stellar systems. This is a general structural feature. It has been believed that such structural features may contain a clue to the formation process of OB associations because OB associations are young. Before the Gaia undertook its own mission, it was very difficult to obtain homogeneous observational data for various associations distributed over wide sky areas. Furthermore, the selection of members was even more limited. The Gaia mission has now opened a new window to study OB associations in detail as it measures the precise parallaxes and proper-motions of stars in the Galaxy. In this talk, I will present the observational results of several galactic OB associations and discuss their formation process.