Radio Emission from Masuda Sources

S. H. Park, Gregory Fleishman

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We note that different models, providing comparably good interpretation of the hard X-ray properties of so-called Masuda sources, can make distinctly different predictions for the radio emission produced at the Masuda source by the same population of accelerated electrons. Accordingly, we calculate the radio emission within a few competing models, i. e., those involving magnetic, turbulent, and collisional trapping of the fast electrons in the coronal source. We show that even available incomplete radio observations of the classical Masuda event and a Masuda-like event on 31 December 2007, recently reported by Krucker et al. (Astrophys. J. 714, 1108, 2010) are highly valuable in restricting the physical model of the source. Furthermore, our study proposes that combination of more complete high-resolution X-ray and radio observations can allow unambiguous distinction between the competing Masuda source models.

Original languageEnglish (US)
Pages (from-to)323-335
Number of pages13
JournalSolar Physics
Issue number2
StatePublished - 2010

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • Corona, radio emission
  • Energetic particles, electrons
  • Flares, dynamics
  • Magnetic fields, corona
  • Plasma physics
  • Radio bursts, association with flares
  • Radio bursts, theory


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