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The mark III Nançay radioheliograph The Radioheliograph Group


A north-south array has been added to the Mark II Nançay Radioheliograph (Radioheliograph Group, 1977). This instrument gives at 169 MHz two one-dimensional images of the Sun in the east-west and north-south directions including measurement of the circular polarization ratio. The main performances of this instrument are high space and time resolutions, flexible on line data processing and the possibility of off-line interactive data reduction. The method of calibration is briefly described. A few observations are presented.

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  1. Bonmartin, J. and Kerdraon, A.: 1981, L'onde Electrique, Août-Septembre 11.

  2. Lantos, P., Kerdraon, A., Rapley, C., and Bentley, R.: 1981, Astron. Astrophys. 101, 33.

  3. Mercier, C.: 1983, paper in preparation.

  4. The Radioheliograph Group: 1977, Solar Phys. 55, 251.

  5. Trottet, G., Pick, M., House, L., Illing, R., Sawyer, C., and Wagner, W.: 1982, Astron. Astrophys. 111, 306.

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Bonmartin, J., Bouteille, A., Clavelier, B. et al. The mark III Nançay radioheliograph The Radioheliograph Group. Sol Phys 88, 383–390 (1983).

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  • Data Processing
  • Time Resolution
  • Data Reduction
  • Circular Polarization
  • Interactive Data