Spatially Resolved Observations Confirm Transition Radiation in a Solar Radio Burst

Details Spatially Resolved Observations Confirm Transition Radiation in a Solar Radio Burst Spatially Resolved Observations Confirm Transition Radiation in a Solar Radio Burst

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsp52a..01n&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #SP52A-01

Astronomy and Astrophysics

Astrophysics

7519 Flares, 7534 Radio Emissions

Scientific paper

We report the first confirmed spatially resolved observation of the decimetric Resonant Transition Radiation (RTR) in a solar radio burst, which is an unavoidable by-product of microturbulences present in dense enough astrophysical plasmas. A number of recent publications, based mainly on studies of individual events, found some indication that RTR may be produced in solar radio bursts. Most recently, we have described the observational characteristics expected for RTR in the case of solar radio bursts (Fleishman, Nita, and Gary, 2005, ApJ, 620, 506), and found that the correlations and associations predicted for total power data are indeed present in the decimetric components of a statistical sample of two-component solar continuum radio bursts. However, interpretations based on non-imaging total power data remain indirect (and, thus, ambiguous) until they can be combined with direct imaging evidence from multi-wavelength spatially resolved observations, which so far have been missing in the previous studies. The spectral components of such RTR candidate bursts (one at centimeter wavelengths due to the usual gyrosynchrotron mechanism, and one at decimeter wavelengths suspected as RTR), must be co-spatial to allow an unambiguous RTR interpretation. This study presents comprehensive (radio, optical, and soft X-ray) spatially resolved observations for one of these bursts, which, together with the already demanding spectral and polarization correlations found previously, provide direct evidence for the presence of RTR.

Affiliated with

Also associated with

No associations

Rating

Spatially Resolved Observations Confirm Transition Radiation in a Solar Radio Burst does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spatially Resolved Observations Confirm Transition Radiation in a Solar Radio Burst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spatially Resolved Observations Confirm Transition Radiation in a Solar Radio Burst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1700609