AGN Variability and VLBI
نویسندگان
چکیده
منابع مشابه
Millimeter VLBI and Variability in AGN Jets
Millimeter-VLBI images probe as deep as never before the nuclei of AGN. VLBI at 147GHz yields transatlantic fringes for the first time. Now we can begin to study the relation between jet kinematics and spectral activity with a few ten micro-arcsecond resolution. 1. Present Status of 3mm-VLBI The main advantage of VLBI observations at short millimeter wavelengths (mmVLBI) is the very high angula...
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Global millimetre VLBI allows detailed studies of the most central jet regions of AGN with unprecedent spatial resolution of a few 100–1000 Schwartzschild radii to be made. Study of these regions will help to answer the question how the highly relativistic AGN jets are launched and collimated. Since the early 1990s, bright mm-sources have been observed with global 3 mm VLBI. Here we present new...
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Global 6 cm VLBI polarization observations of the intraday variable sources 0716+714, 0917+624, and 0954+658 are analyzed. Integrated VLA measurements during the VLBI observations suggest that although there were no substantial total intensity variations, the polarization for all three sources varied signiicantly during the 24-hour VLBI experiment. The VLBI data were divided into 2{3 hour segme...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1994
ISSN: 0074-1809
DOI: 10.1017/s0074180900174996