Overview of the observing system and initial scientific accomplishments of the East Asian VLBI Network(EAVN)

Akiyama, Kazunori and Algaba Marcos, Juan-Carlos and An, Tao and Asada, Keiichi and Asanok, Kitiyanee and Byun, Do-Young and Chanapote, Thanapol and Chen, Wen and Chen, Zhong and Cheng, Xiaopeng and Chibueze, James O. and Cho, Ilje and Cho, Se-Hyung and Chung, Hyun-Soo and Cui, Lang and Cui, Yuzhu and Doi, Akihiro and Dong, Jian and Fujisawa, Kenta and Gou, Wei and Guo, Wen and Hada, Kazuhiro and Hagiwara, Yoshiaki and Hirota, Tomoya and Hodgson, Jeffrey A. and Honma, Mareki and Imai, Hiroshi and Jaroenjittichai, Phrudth and Jiang, Wu and Jiang, Yongbin and Jiang, Yongchen and Jike, Takaaki and Jung, Dong-Kyu and Jung, Taehyun and Kawaguchi, Noriyuki and Kim, Dong-Jin and Kim, Hyo-Ryoung and Kim, Jaeheon and Kim, Jeong-Sook and Kim, Kee-Tae and Kim, Soon-Wook and Kino, Motoki and Kobayashi, Hideyuki and Koyama, Shoko and Kramer, Busaba H. and Lee, Jee-Won and Lee, Jeong Ae and Lee, Sang-Sung and Lee, Sang Won and Li, Bin and Li, Guanghui and Li, Xiaofei and Li, Zhixuan and Liu, Qinghui and Liu, Xiang and Lu, Ru-Sen and Motogi, Kazuhito and Nakamura, Masanori and Niinuma, Kotaro and Oh, Chungsik and Oh, Hongjong and Oh, Junghwan and Oh, Se-Jin and Oyama, Tomoaki and Park, Jongho and Poshyachinda, Saran and Ro, Hyunwook and Roh, Duk-Gyoo and Rujopakarn, Wiphu and Sakai, Nobuyuki and Sawada-Satoh, Satoko and Shen, Zhi-Qiang and Shibata, Katsunori M. and Sohn, Bong Won and Soonthornthum, Boonrucksar and Sugiyama, Koichiro and Sun, Yunxia and Takamura, Mieko and Tanabe, Yoshihiro and Tazaki, Fumie and Trippe, Sascha and Wajima, Kiyoaki and Wang, Jinqing and Wang, Na and Wang, Shiqiang and Wang, Xuezheng and Xia, Bo and Xu, Shuangjing and Yan, Hao and Yang, Wenjun and Yeom, Jae-Hwan and Yi, Kunwoo and Yi, Sang-Oh and Yonekura, Yoshinori and Yoon, Hasu and Yu, Linfeng and Yuan, Jianping and Yun, Youngjoo and Zhang, Bo and Zhang, Hua and Zhang, Yingkang and Zhao, Guang-Yao and Zhao, Rongbing and Zhong, Weiye (2022) Overview of the observing system and initial scientific accomplishments of the East Asian VLBI Network(EAVN). Galaxies, 10 (6). ISSN 2075-4434, DOI https://doi.org/10.3390/galaxies10060113.

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The East Asian VLBI Network (EAVN) is an international VLBI facility in East Asia and is operated under mutual collaboration between East Asian countries, as well as part of Southeast Asian and European countries. EAVN currently consists of 16 radio telescopes and three correlators located in China, Japan, and Korea, and is operated mainly at three frequency bands, 6.7, 22, and 43 GHz with the longest baseline length of 5078 km, resulting in the highest angular resolution of 0.28 milliarcseconds at 43 GHz. One of distinct capabilities of EAVN is multi-frequency simultaneous data reception at nine telescopes, which enable us to employ the frequency phase transfer technique to obtain better sensitivity at higher observing frequencies. EAVN started its open-use program in the second half of 2018, providing a total observing time of more than 1100 h in a year. EAVN fills geographical gap in global VLBI array, resulting in enabling us to conduct contiguous high-resolution VLBI observations. EAVN has produced various scientific accomplishments especially in observations toward active galactic nuclei, evolved stars, and star-forming regions. These activities motivate us to initiate launch of the ’Global VLBI Alliance’ to provide an opportunity of VLBI observation with the longest baselines on the earth. © 2022 by the authors.

Item Type: Article
Funders: Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research (KAKENHI), Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science (18H05222)
Uncontrolled Keywords: Active galactic nucleus; astrometry; evolved star; star-forming region; very long baseline interferometry
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 26 Jan 2024 01:45
Last Modified: 26 Jan 2024 01:45
URI: http://eprints.um.edu.my/id/eprint/43988

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