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

description: 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 hours 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.
description: 27 pages, appeared in Galaxies special issue 'Challenges in Understanding Black Hole Powered Jets with VLBI' as an invited review