Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...299.1017s&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 299, Dec. 15, 1985, p. 1017-1026.
Astronomy and Astrophysics
Astrophysics
25
Microwave Imagery, Solar Flares, Solar Limb, Solar Radio Emission, Solar X-Rays, Centimeter Waves, Energy Distribution, Polarized Electromagnetic Radiation, Solar Electrons, Solar Spectra, Synchrotron Radiation, Very Large Array (Vla)
Scientific paper
A solar limb flare was mapped using the Very Large Array (VLA) together with hard X-ray (HXR) spectral and spatial observations of the Solar Maximum Mission satellite. Microwave flux records from 2.8 to 19.6 GHz were instrumental in determining the burst spectrum, which has a maximum at 10 GHz. The flux spectrum and area of the burst sources were used to determine the number of electrons producing gyrosynchrotron emission, magnetic field strength, and the energy distribution of gyrosynchrotron-emitting electrons. Applying the thick target model to the HXR spectrum, the number of high energy electrons responsible for the X-ray bursts was found to be 10 to the 36th, and the electron energy distribution was approximately E exp -5, significantly different from the parameters derived from the microwave observations. The HXR imaging observations exhibit some similiarities in size and structure o the first two burst sources mapped with the VLA. However, during the initial burst, the HXR source was single and lower in the corona than the double 6 cm source. The observations are explained in terms of a single loop with an isotropic high-energy electron distribution which produced the microwaves, and a larger beamed component which produced the HXR at the feet of the loop.
Dennis Brian R.
Kundu Mukul R.
Schmahl Ed. J.
No associations
LandOfFree
Microwave imaging of a solar limb flare - Comparison of spectra and spatial geometry with hard X-rays 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 Microwave imaging of a solar limb flare - Comparison of spectra and spatial geometry with hard X-rays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microwave imaging of a solar limb flare - Comparison of spectra and spatial geometry with hard X-rays will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1160387