East Asian VLBI Network (EAVN)

Introduction

This document describes the current observational capabilities and possible observing time of the East Asian VLBI Network (EAVN), and is a supplementary document to the KaVA Status Report [1]. EAVN is the international collaborative VLBI array operated by Korea Astronomy and Space Science Institute (KASI), National Astronomical Observatory of Japan (NAOJ), Shanghai Astronomical Observatory (SHAO; China), and Xinjiang Astronomical Observatory (XAO; China).

EAVN invites proposals for open-use observations to be carried out from January 15, 2019 to June 15, 2019 (2019A semester). The total observing time of 100 hours is provided for EAVN open-use operation to proposers, while the available machine time of each telescope is different between each other. Refer to Section 3 for more details.

In 2019A semester, EAVN is operated using 10 telescopes, 7 telescopes of the KVN and VERA Array (KaVA) in Korea and Japan, Nobeyama 45-m telescope in Japan, Tianma 65-m and Nanshan 26-m telescopes in China. Figure 1 shows location of EAVN telescopes which participate in open-use observations of EAVN in 2019A semester

This status report mainly summarizes general information of EAVN, brief summary and the performance of Nobeyama 45-m, Tianma 65-m, and Nanshan 26-m telescopes, and how to prepare and submit proposals for EAVN. Refer to the KaVA Status Report [1], as well as the KaVA webpage (http://kava.kasi.re.kr/), for more details about KaVA.

Figure 1: Location of EAVN sites, including the Korea-Japan Correlation Center at KASI, Korea, overlaind on 'the Blue Marble' image (image credit: NASA's Earth Observatory).



KASI logo image

EAVN ( East Asia VLBI Network)