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Your search keyword '"Asaki, Y."' showing total 4 results
Start Over Author "Asaki, Y." Publisher purdue university
4 results on '"Asaki, Y."'

1. The VSOP 5 GHz active galactic nucleus survey. V. Imaging results for the remaining 140 sources

Author

Dodson, R., Fomalont, E. B., Wiik, K., Horiuchi, S., Hirabayashi, H., Edwards, P. G., Murata, Y., Asaki, Y., Moellenbrock, G. A., Scott, W. K., Taylor, A. R., Gurvits, L. I., Paragi, Z., Frey, S., Shen, Z. Q., Lovell, J. E. J., Tingay, S. J., Rioja, M. J., Fodor, S., Lister, M. L., Mosoni, L., Coldwell, G., Piner, B. G., Yang, J., Dodson, R., Fomalont, E. B., Wiik, K., Horiuchi, S., Hirabayashi, H., Edwards, P. G., Murata, Y., Asaki, Y., Moellenbrock, G. A., Scott, W. K., Taylor, A. R., Gurvits, L. I., Paragi, Z., Frey, S., Shen, Z. Q., Lovell, J. E. J., Tingay, S. J., Rioja, M. J., Fodor, S., Lister, M. L., Mosoni, L., Coldwell, G., Piner, B. G., and Yang, J.

Abstract

In 1997 February, the Japanese radio astronomy satellite HALCA was launched to provide the space-bourne element for the VLBI Space Observatory Program (VSOP) mission. Approximately 25% of the mission time was dedicated to the VSOP survey of bright compact active galactic nuclei (AGNs) at 5 GHz. This paper, the fifth in the series, presents images and models for the remaining 140 sources not included in the third paper in the series, which contained 102 sources. For most sources, the plots of the (u, v) coverage, the visibility amplitude versus (u, v) distance, and the high-resolution image are presented. Model fit parameters to the major radio components are determined, and the brightness temperature of the core component for each source is calculated. The brightness temperature distributions for all of the sources in the VSOP AGN survey are discussed.

Published
2008

2. The VSOP 5 GHz active galactic nucleus survey. V. Imaging results for the remaining 140 sources

Author

Dodson, R., Fomalont, E. B., Wiik, K., Horiuchi, S., Hirabayashi, H., Edwards, P. G., Murata, Y., Asaki, Y., Moellenbrock, G. A., Scott, W. K., Taylor, A. R., Gurvits, L. I., Paragi, Z., Frey, S., Shen, Z. Q., Lovell, J. E. J., Tingay, S. J., Rioja, M. J., Fodor, S., Lister, M. L., Mosoni, L., Coldwell, G., Piner, B. G., Yang, J., Dodson, R., Fomalont, E. B., Wiik, K., Horiuchi, S., Hirabayashi, H., Edwards, P. G., Murata, Y., Asaki, Y., Moellenbrock, G. A., Scott, W. K., Taylor, A. R., Gurvits, L. I., Paragi, Z., Frey, S., Shen, Z. Q., Lovell, J. E. J., Tingay, S. J., Rioja, M. J., Fodor, S., Lister, M. L., Mosoni, L., Coldwell, G., Piner, B. G., and Yang, J.

Abstract

In 1997 February, the Japanese radio astronomy satellite HALCA was launched to provide the space-bourne element for the VLBI Space Observatory Program (VSOP) mission. Approximately 25% of the mission time was dedicated to the VSOP survey of bright compact active galactic nuclei (AGNs) at 5 GHz. This paper, the fifth in the series, presents images and models for the remaining 140 sources not included in the third paper in the series, which contained 102 sources. For most sources, the plots of the (u, v) coverage, the visibility amplitude versus (u, v) distance, and the high-resolution image are presented. Model fit parameters to the major radio components are determined, and the brightness temperature of the core component for each source is calculated. The brightness temperature distributions for all of the sources in the VSOP AGN survey are discussed.

Published
2008

3. The VSOP 5 GHz Active Galactic Nucleus Survey. II. Data calibration and imaging

Author

Lovell, J. E. J., Moellenbrock, G. A., Horiuchi, S., Fomalont, E. B., Scott, W. K., Hirabayashi, H., Dodson, R. G., Dougherty, S. M., Edwards, P. G., Frey, S., Gurvits, L. I., Lister, M. L., Murphy, D. W., Paragi, Z., Piner, B. G., Shen, Z. Q., Taylor, A. R., Tingay, S. J., Asaki, Y., Moffett, D., Murata, Y., Lovell, J. E. J., Moellenbrock, G. A., Horiuchi, S., Fomalont, E. B., Scott, W. K., Hirabayashi, H., Dodson, R. G., Dougherty, S. M., Edwards, P. G., Frey, S., Gurvits, L. I., Lister, M. L., Murphy, D. W., Paragi, Z., Piner, B. G., Shen, Z. Q., Taylor, A. R., Tingay, S. J., Asaki, Y., Moffett, D., and Murata, Y.

Abstract

The VLBI Space Observatory Programme (VSOP) mission is a Japanese-led project to study radio sources with sub-milliarcsecond angular resolution using an orbiting 8 m telescope, HALCA, and global arrays of Earth-based telescopes. Approximately 25% of the observing time has been devoted to a survey of compact active galactic nuclei (AGNs) at 5 GHz that are stronger than 1 Jy-the VSOP AGN Survey. This paper, the second in a series, describes the data calibration, source detection, self-calibration, imaging, and modeling and gives examples illustrating the problems specific to space VLBI. The VSOP Survey Web site, which contains all results and calibrated data, is described.

Published
2004

4. The VSOP 5 GHz Active Galactic Nucleus Survey. II. Data calibration and imaging

Author

Lovell, J. E. J., Moellenbrock, G. A., Horiuchi, S., Fomalont, E. B., Scott, W. K., Hirabayashi, H., Dodson, R. G., Dougherty, S. M., Edwards, P. G., Frey, S., Gurvits, L. I., Lister, M. L., Murphy, D. W., Paragi, Z., Piner, B. G., Shen, Z. Q., Taylor, A. R., Tingay, S. J., Asaki, Y., Moffett, D., Murata, Y., Lovell, J. E. J., Moellenbrock, G. A., Horiuchi, S., Fomalont, E. B., Scott, W. K., Hirabayashi, H., Dodson, R. G., Dougherty, S. M., Edwards, P. G., Frey, S., Gurvits, L. I., Lister, M. L., Murphy, D. W., Paragi, Z., Piner, B. G., Shen, Z. Q., Taylor, A. R., Tingay, S. J., Asaki, Y., Moffett, D., and Murata, Y.

Abstract

The VLBI Space Observatory Programme (VSOP) mission is a Japanese-led project to study radio sources with sub-milliarcsecond angular resolution using an orbiting 8 m telescope, HALCA, and global arrays of Earth-based telescopes. Approximately 25% of the observing time has been devoted to a survey of compact active galactic nuclei (AGNs) at 5 GHz that are stronger than 1 Jy-the VSOP AGN Survey. This paper, the second in a series, describes the data calibration, source detection, self-calibration, imaging, and modeling and gives examples illustrating the problems specific to space VLBI. The VSOP Survey Web site, which contains all results and calibrated data, is described.

Published
2004

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