Evidence for Ordinary Mode Emission from Microwave Bursts

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

16

Scientific paper

We analyze high-resolution, one-dimensional observations of simple microwave bursts, obtained at 4.9 GHz with the Westerbork Synthesis Radio Telescope in 1980, together with Hα photographs of the associated flares from the Observatories of Athens and Meudon. In most cases the polarization structure can be interpreted in terms of extraordinary mode emission, taking into account the polarity of the underlying magnetic field and propagation effects, which may lead to inversion of the sense of polarization in the limbward part of the flaring loop. We found evidence for ordinary mode emission in two classes of events. In one class theo-mode comes from regions overlying strong magnetic field, which we interpret in terms of thermal gyroresonance absorption of the extraordinary mode at the third harmonic of the gyrofrequency. In the other class the entire burst emits in theo-mode, which may be attributed to high gyrosynchrotron optical depth.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Evidence for Ordinary Mode Emission from Microwave Bursts 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 Evidence for Ordinary Mode Emission from Microwave Bursts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence for Ordinary Mode Emission from Microwave Bursts will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1330349

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.