Asymmetric precipitation in a coronal loop as explanation of a singular observed spectrum

Details Asymmetric precipitation in a coronal loop as explanation of a singular observed spectrum Asymmetric precipitation in a coronal loop as explanation of a singular observed spectrum

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009adspr..44.1314c&link_type=abstract

Advances in Space Research, Volume 44, Issue 11, p. 1314-1320.

Computer Science

1

Scientific paper

Almost 10 years of solar submillimeter observations have shown new aspects of solar activity, such as the presence of rapid solar spikes associated with the launch of coronal mass ejections and an increasing submillimeter spectral component in flares. We analyse the singular microwave-submillimeter spectrum of an M class solar flare on 20 December, 2002. Flux density observations measured by Sun patrol telescopes and the Solar Submillimeter Telescope are used to build the radio spectrum, which is fitted using Ramaty’s code. At submillimeter frequencies the spectrum shows a component different from the microwave classical burst. The fitting is achieved proposing two homogeneous sources of emission. This theoretical fitting is in agreement with differential precipitation through a magnetically asymmetric loop or set of loops. From a coronal magnetic field model we infer an asymmetric magnetic structure at the flare location. The model proposed to quantify the differential precipitation rates due to the asymmetry results in a total precipitation ratio Q2/Q1≈104-105, where Q1(Q2) represents the total precipitation in the loop foot with the high (low) magnetic field intensity. This ratio agrees with the electron total number ratio of the two sources proposed to fit the radio spectrum.

Affiliated with

Also associated with

No associations

Rating

Asymmetric precipitation in a coronal loop as explanation of a singular observed spectrum 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 Asymmetric precipitation in a coronal loop as explanation of a singular observed spectrum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Asymmetric precipitation in a coronal loop as explanation of a singular observed spectrum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1766649