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VLA observations of narrow-band decimetric burst emission

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The Very Large Array was used to observe a multiply-impulsive solar radio burst at several wavelengths near 20 cm. The observations indicate that the impulsive emission was nearly 100% circularly polarized and originated in small regions of ∼ 10″–20″ in size. For one of the impulsive spikes, we find evidence of narrow-band emission that could be attributed to an electron-cyclotron maser. The radio data are also compared with soft X-ray data and interpreted in light of a model in which the coronal plasma is heated by maser burst emission.

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Willson, R.F. VLA observations of narrow-band decimetric burst emission. Sol Phys 96, 199–207 (1985). https://doi.org/10.1007/BF00239801

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  • Small Region
  • Large Array
  • Radio Burst
  • Solar Radio
  • Radio Data