On the feasibility of imaging coronal mass ejections at radio wavelengths

T. S. Bastian, D. E. Gary

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Coronal mass ejections (CMEs) can have a profound impact on the interplanetary medium and the near-Earth environment. We discuss the feasibility of detecting coronal mass ejections at radio wavelengths with a ground-based instrument. In particular, we explore the possibility that a radio telescope employing Fourier synthesis imaging techniques can detect thermal bremsstrahlung emission from CMEs. Using a simulated database from such a telescope, we explore three detection schemes: direct detection, an approximate differential detection scheme, and an "exact" differential detection scheme. We conclude that thermal bremsstrahlung emission from CMEs can be detected by such a telescope provided differential techniques are employed. While the approximate differential detection scheme may be sufficient for CMEs viewed near the solar limb, detection of CMEs against the solar disk may require the more sensitive exact differential scheme. The detection and imaging of nonthermal radio emissions from CMEs is also discussed.

Original languageEnglish (US)
Article number97JA00483
Pages (from-to)14031-14040
Number of pages10
JournalJournal of Geophysical Research A: Space Physics
Volume102
Issue numberA7
DOIs
StatePublished - 1997
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Fingerprint

Dive into the research topics of 'On the feasibility of imaging coronal mass ejections at radio wavelengths'. Together they form a unique fingerprint.

Cite this