SOURCE-FREQUENCY PHASE-REFERENCING OBSERVATION OF AGNS WITH KAVA USING SIMULTANEOUS DUAL-FREQUENCY RECEIVING
文献类型：期刊论文
| 作者 | Zhao, Guang-Yao3; Jung, Taehyun2,3; Sohn, Bong Won2,3,6; Kino, Iviotoki1,17; Honma, Mareki16,17; Dodson, Richard15; Rioja, Maria13,14,15; Han, Seog-Tae3; Shibata, Katsunori16,17; Byun, Do-Young2,3,6 |
| 刊名 | JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 52期号:1页码:23-30 |
| 关键词 | galaxies: active galaxies: individual: 4C 39.25, 0945+408 astrometry techniques: interferometric |
| ISSN号 | 1225-4614 |
| DOI | 10.5303/JKAS.2019.52.1.23 |
| 英文摘要 | The KVN(Korean VLBI Network)-style simultaneous multi-frequency receiving mode is demonstrated to be promising for mm-VLBI observations. Recently, other Very long baseline interferometry (VLBI) facilities all over the globe start to implement compatible optics systems. Simultaneous dual/multi-frequency VLBI observations at mm wavelengths with international baselines are thus possible. In this paper, we present the results from the first successful simultaneous 22/43 GHz dual-frequency observation with KaVA(KVN and VERA array), including images and astrometric results. Our analysis shows that the newly implemented simultaneous receiving system has brought a significant extension of the coherence time of the 43 GHz visibility phases along the international baselines. The astrometric results obtained with KaVA are consistent with those obtained with the independent analysis of the KVN data. Our results thus confirm the good performance of the simultaneous receiving systems for the non-KVN stations. Future simultaneous observations with more global stations bring even higher sensitivity and micro-arcsecond level astrometric measurements of the targets. |
| 资助项目 | Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT[NRF-2015H1D3A1066561] ; Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT[2018H1D3A1A02032824] ; National Research Foundation of Korea (NRF)[NRF-2015R1D1A1A01056807] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000461832800003 |
| 出版者 | KOREAN ASTRONOMICAL SOCIETY |
| 源URL | [http://119.78.226.72/handle/331011/31905]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Zhao, Guang-Yao |
| 作者单位 | 1.Kogakuin Univ, Acad Support Ctr, 2665-1 Nakano, Hachioji, Tokyo 1920015, Japan 2.Univ Sci & Technol, 217 Gajeong Ro, Daejeon 34113, South Korea 3.Korea Astron & Space Sci Inst, Daejeon 34055, South Korea 4.Univ Malaya, Fac Sci, Dept Phys, Kuala Lumpur 50603, Malaysia 5.Kagoshima Univ, Grad Sch Sci & Engn, 1-21-35 Korimoto, Kagoshima, Kagoshima 8900065, Japan 6.Yonsei Univ, Dept Astron, 134 Shinchon Dong, Seoul 03722, South Korea 7.Yamaguchi Univ, Grad Sch Sci & Technol Innovat, Yoshida 1677-1, Yamaguchi, Yamaguchi 7538512, Japan 8.Univ Chinese Acad Sci, 19A Yuquanlu, Beijing 100049, Peoples R China 9.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China 10.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Guang-Yao,Jung, Taehyun,Sohn, Bong Won,et al. SOURCE-FREQUENCY PHASE-REFERENCING OBSERVATION OF AGNS WITH KAVA USING SIMULTANEOUS DUAL-FREQUENCY RECEIVING[J]. JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY,2019,52(1):23-30. |
| APA | Zhao, Guang-Yao.,Jung, Taehyun.,Sohn, Bong Won.,Kino, Iviotoki.,Honma, Mareki.,...&Zhang, Yingkang.(2019).SOURCE-FREQUENCY PHASE-REFERENCING OBSERVATION OF AGNS WITH KAVA USING SIMULTANEOUS DUAL-FREQUENCY RECEIVING.JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY,52(1),23-30. |
| MLA | Zhao, Guang-Yao,et al."SOURCE-FREQUENCY PHASE-REFERENCING OBSERVATION OF AGNS WITH KAVA USING SIMULTANEOUS DUAL-FREQUENCY RECEIVING".JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY 52.1(2019):23-30. |
入库方式： OAI收割
来源：上海天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。