본문 바로가기 대메뉴 바로가기

Simultaneous Monitoring Observations of SiO and H2O Masers toward Evolved Stars with KVN

2020-06-15
  • Speaker : Se-Hyung Cho (KASI/SNU)
  • Date : 2020-07-01 10:30 ~ 11:30
  • Location : 은하수홀 소극장(The Small Theater of the Eunhasoo Hall)
  • Host : 조경석

Based on KVN single-dish surveys and VLBI feasibility test observations at K/Q/W/D bands, the first generation KVN Key Science Program (KSP) for evolved stars has started from 2015 and completed until the end of 2019. We focused on nine targets among 16 objects which show a successful astrometrically registered maps of SiO and H2O masers using the source frequency phase referencing method. We aimed at investigating the spatial structure and dynamical effect from 43/42/86/129 GHz SiO to 22 GHz H2O maser regions associated with a stellar pulsation and development of asymmetry in circumstellar envelopes. Here I introduce the results of several individual targets together with ongoing symbiotic star project.

만족도 조사
콘텐츠 담당부서전파천문본부
콘텐츠 만족도