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-Yao1; Jung, Taehyun1,2; Sohn, Bong Won1,2,15; Kino, Iviotoki3,4; Honma, Mareki4,5; Dodson, Richard6; Rioja, Maria6,7,8; Han, Seog-Tae1; Shibata, Katsunori4,5; Byun, Do-Young1,2,15 |
| 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 |
| ISSN号 | 1225-4614 |
| 关键词 | galaxies: active galaxies: individual: 4C 39.25, 0945+408 astrometry techniques: interferometric |
| DOI | 10.5303/JKAS.2019.52.1.23 |
| 通讯作者 | Zhao, Guang-Yao(gyzhao@kasi.re.kr) |
| 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. |
| WOS关键词 | VLBI ; OPTICS ; JETS |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | KOREAN ASTRONOMICAL SOCIETY |
| WOS记录号 | WOS:000461832800003 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/23943]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Zhao, Guang-Yao |
| 作者单位 | 1.Korea Astron & Space Sci Inst, Daejeon 34055, South Korea 2.Univ Sci & Technol, 217 Gajeong Ro, Daejeon 34113, South Korea 3.Kogakuin Univ, Acad Support Ctr, 2665-1 Nakano, Hachioji, Tokyo 1920015, Japan 4.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan 5.SOKENDAI, Dept Astron Sci, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan 6.Univ Western Australia, ICRAR, M468, 35 Stirling Hwy, Perth, WA 6009, Australia 7.CSIRO Astron & Space Sci, 26 Dick Perry Ave, Kensington, NSW 6151, Australia 8.IGN, OAN, Alfonso XII 3 & 5, Madrid 28014, Spain 9.MIT, Haystack Observ, 99 Millstone Rd, Westford, MA 01886 USA 10.Seoul Natl Univ, Dept Phys & Astron, Seoul 08826, South Korea |
| 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：紫金山天文台
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