These four images are combined radio-optical images of a large solar flare that occurred on 17 June 1989. The red-orange background images are optical images (H-Alpha) and the superimposed contours show radio emission as seen with the VLA at a wavelength of 4.9 GHz. The four images are from four different times during the event, showing the progression toward maximum radio emission (bottom right). This soft X-ray flare was accompanied by a coronal mass ejection.
Investigator(s): A. Kiplinger (H-alpha) and T. Bastian (VLA)
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Telescope
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VLA
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Date of Observation
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1989-07-17
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Type of Observation
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Continuum Observations
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Band
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C
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Wavelength
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6 cm
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Frequency
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5.0 GHz
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Field of View
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0.0300 x 0.0300 degrees
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Technical Caption
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