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논문 기본정보
Calibrator Survey for evolved stars using the KVN
논문 개요
| 기관명 | NDSL |
|---|---|
| 저널명 | 천문학회보 = The Bulletin of the Korean astronomical society |
| ISSN | 1226-2692, |
| ISBN |
논문저자 및 소속기관 정보
| 저자(한글) | Choi, Yoon Kyung,Wagner, Jan,Jung, Taehyun,Yun, Youngjoo,Cho, Se-Hyung |
|---|---|
| 저자(영문) | |
| 소속기관 | |
| 소속기관(영문) | |
| 출판인 | |
| 간행물 번호 | |
| 발행연도 | 2016-01-01 |
| 초록 | We present results of a calibrator search near twenty evolved stars using the Korean VLBI Network (KVN). Our evolved star targets include candidate sources for a Key Science Project (KSP) of the KVN. The KSP plans to investigate the spatial structure and dynamical effects between SiO and H2O maser regions including mass-loss process and development of asymmetry in circumstellar envelopes of evolved stars. For these purposes, we need compact and strong extragalactic sources close to the evolved stars. We carried out 5 observations in order to detect radio continuum sources that can be used for source frequency phase-referencing (SFPR) -based analysis. We observed 153 sources, out of which we detected 29 at 22 GHz and 20 at 43 GHz at signal-to-noise ratios higher than 50 at all baselines. Therefore, we successfully found target and calibrator pairs for the KVN KSP. |
| 원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=JAKO201615964634792 |
| 첨부파일 |
추가정보
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