New Millimetric VLBI Results Presented at 'Extragalactic Radio Sources-from Beamto Jet'. Held in Paris in July 1991. VLBI Observation of Quasars 3C345 and CTA102 at 18 CM Wavelength. Presented at 'Physics of Active Galactic Nuclei'. Held in Heidelberg (Ge

摘要

VLBI observations at 100GHz (wavelength 3mm) started as early as 1981, but 1988was the first epoch aimed for full hybrid mapping. At the same time new data reduction technique was developed to fully handle the new data. Since 1988 three epoches have been observed, in March 1988, March 1989, and April 1990. These observations involved telescopes in Sweden, Japan, and USA. The epoch of 1990 also for the first time in VLBI included the SEST telescope in Chile, and the resolution in the north-south direction was drastically improved. Observations with Very Long Baseline Interferometry (VLBI) at mm wavelengths is currently the only possibility to make images of the cores of active galactic nuclei. Such observations can give us direct insight into the core areas on size scales less than the broad line region and close to that of the accretion disc. The two epoches 1988 and 1989 have been published and discussed in two recent papers. The paper will show some of the new results obtained in 1990.