Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA
ASP Conference Proceedings, Vol. 340
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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.
Scott, W. K., Taylor, A. R., Horiuchi, S., Fomalont, E. B., Lister, M. L., Moellenbrock, G. A., Dodson, R. G., Edwards, P. G., Hirabayashi, H., Murata, Y., Shen, Z. Q., Lovell, J. E., Tingay, S., Frey, S., Mosoni, L., Gurvits, L., Paragi, Z., Piner, B. G., Fodor, S., & Coldwell, G. V. (2005). The VSOP 5 GHz Continuum Survey: The Initial Imaging Results. Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA, ASP Conference Proceedings, Vol. 340, 125. Retrieved from https://poetcommons.whittier.edu/phys/58