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Microwave Observations of the Sun During the 22nd Solar Activity Cycle — 17 GHz Radio Heliograph

  • K. Shibasaki
  • K. Kai
  • S. Enome
  • H. Nakajima
  • M. Nishio
  • T. Takano
  • C. Torii
  • Y. Shiomi
  • H. Sekiguchi
  • M. Sawa
  • T. Bushimata
  • S. Kawashima
  • N. Shinohara
  • T. Kosugi

Abstract

For the study of high energy phenomena on the Sun during the maximum period of the 22-nd solar activity cycle, we started to construct a radio heliograph at Nobeyama Radio Observatory. The operating frequency was selected to be 17GHz to catch the emission from the accelerated electrons in solar flares. The 17GHz Radio Heliograph consists of “T” shaped array of 490 m in E-W direction and 220 m in N-S direction with 84 antenna elements. The heliograph can map the whole Sun with 10 arc second spatial resolution and with 50 millisecond temporal resolution.

Keywords

Solar Flare Radio Source Point Spread Function Solar Disk High Energy Electron 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Napier, P.J., Thompson, A.R., and Ekers, R.D. (1983) The Very Large Array: Design and Performance of a Modern Synthesis Radio Telescope. Proc. IEEE, 71: 1295–1320.CrossRefGoogle Scholar
  2. 2.
    Hogbom, J.A., Brouw, W.N. (1974) The Synthesis Radio Telescope at Westerbork. Principles of Operation, Performance and Data Reduction. Astron. Astrophys., 33:, 289–301.Google Scholar
  3. 3.
    Ogawara, Y. (1989) The Solar-A Mission.. Adv. Space Res., 8: (11)87–(11)92.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Tokyo 1991

Authors and Affiliations

  • K. Shibasaki
    • 1
  • K. Kai
    • 1
  • S. Enome
    • 1
  • H. Nakajima
    • 1
  • M. Nishio
    • 1
  • T. Takano
    • 1
  • C. Torii
    • 1
  • Y. Shiomi
    • 1
  • H. Sekiguchi
    • 1
  • M. Sawa
    • 1
  • T. Bushimata
    • 1
  • S. Kawashima
    • 1
  • N. Shinohara
    • 1
  • T. Kosugi
    • 2
  1. 1.Nobeyama Radio ObservatoryNational Astronomical ObservatoryNaganoJapan
  2. 2.Institute of Astronomy, Faculty of ScienceUniversity of TokyoTokyoJapan

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