出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present the basic features and the activities of Japanese VLBI network (JVN), a newlyestablished
VLBI network with baselines ranging from 50 to 2560 km spreading across the
Japanese islands, and capable of observing at 6.7, 8.4, and 22 GHz. We show a number of results
of JVN observations: 8.4-GHz continuum images of a Giga-hertz Peaked Spectrum (GPS) source
and radio-loud Narrow-Line Seyfert 1 galaxies (NLS1s), the spatial and velocity structures of water
masers in NML Cygni as well as methanol masers in Cep A, and demonstrative observations
with the bigradient phase referencing.
