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The VSOP (the VLBI Space Observatory Programme) 5 GHz AGN (Active Galactic Nu...
A significant fraction of the mission time of VSOP was to be dedicated to the VSOP Survey Programme of bright compact Active Galactic Nuclei (AGN) at 5 GHz, which was lead by... -
Green Bank Spectral Archive
High frequency water maser and HI spectra are available through this web service. The water maser phenomena are found in active galactic nuclei (AGN) and have been surveyed with...