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Simultaneous Observations of SiO and $H_2O$ Masers toward Known Stellar $H_2O$-only Maser Sources
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  • Simultaneous Observations of SiO and $H_2O$ Masers toward Known Stellar $H_2O$-only Maser Sources
  • Simultaneous Observations of SiO and $H_2O$ Masers toward Known Stellar $H_2O$-only Maser Sources
저자명
김재헌,조세형,김상준,Kim. Jae-Heon,Cho. Se-Hyung,Kim. Sang-Joon
간행물명
천문학회보
권/호정보
2011년|36권 2호|pp.145-145 (1 pages)
발행정보
한국천문학회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

We present the results of simultaneous observations of SiO v = 1, 2, J = 1-0, $^{29}SiO$ v = 0, J = 1-0, and $H_2O$ $6_{16}-5_{23}$ maser lines toward 152 known $H_2O$-only maser sources (the sources which are previously detected only in the 22 GHz $H_2O$ maser emission) using Yonsei and Tamna 21-m radio telescopes of the Korean VLBI Network from 2009 June to 2011 January. Both SiO and $H_2O$ maser emission were detected from 62 sources giving a detection rate of 40.8 %. SiO-only maser emission was detected from 27 sources, while $H_2O$-only maser was detected from 22 sources. We have identified 19 new detections of SiO maser emission for previous non-detection sources and 51 new detections of SiO maser for previously not observed sources. Characteristics of all observed sources in the IRAS two-color diagram is investigated including their evolutionary sequence and mutual relations between SiO and $H_2O$ maser emission. These observational results will be useful for statistical study of asymptotic giant branch (AGB) stars and future VLBI observation.