Summary : An international collaboration via Very long Baseline Interferometer (VLBI) network KaVA (KVN and VERA Array) report the first observational results detailing complex outflow structures in a high-mass star-cluster forming region G25.82-0.17 by combining follow-up data from the international project, ALMA (Atacama Large Millimeter/submillimeter Array), as one of the KaVA large programs investigating star-formation under collaboration of the Mizusawa-VLBI Observatory of NAOJ (National Astronomical Observatory of Japan) with KASI (Korea Astronomy and Space Science Institute). The results demonstrate that newly born high-mass stars in G25.82-0.17 were likely formed in a similar manner to Solar-type low-mass stars. The present study is the first step toward larger-scale EAVN (East-Asian VLBI Network), in which the 40-m Thai National Radio Telescope by National Astronomical Research Institute of Thailand (NARIT) will be collaborating in the large program investigating star-formation in the near future.

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