The VSOP 5 GHz continuum survey: The initial imaging results

被引:0
|
作者
Scott, WK [1 ]
Taylor, AR [1 ]
Horiuchi, S [1 ]
Fomalont, EB [1 ]
Lister, ML [1 ]
Moellenbrock, GA [1 ]
Dodson, RG [1 ]
Edwards, PG [1 ]
Hirabayashi, H [1 ]
Murata, Y [1 ]
Shen, ZQ [1 ]
Lovell, JEJ [1 ]
Tingay, S [1 ]
Frey, S [1 ]
Mosoni, L [1 ]
Gurvits, L [1 ]
Paragi, Z [1 ]
Piner, G [1 ]
Fodor, S [1 ]
Coldwell, GV [1 ]
机构
[1] Univ Calgary, Dept Phys & Astron, Calgary, AB T2N 1N4, Canada
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中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The VSOP mission is a Japanese-led project to image radio sources with sub-milliarcsec resolution using an orbiting 8 m telescope, HALCA, along with global arrays of Earth-based telescopes. The orbit of HALCA generates VLBI baselines that are typically two to three times longer than can be obtained with solely ground-based VLBI (Hirabayashi et al. 1998). Approximately 25% of the observing time was devoted to a survey of the brightest, compact AGN at 5 GHz-the VSOP AGN Survey. From the Survey data we have generated high resolution images, and fit simple models to the primary radio components. From the model-fit parameters the core brightness temperature of the individual sources has been calculated. A significant fraction of the sources have core brightness temperatures in excess of 1012 K in the source frame.
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页码:125 / 127
页数:3
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