Statistical study of the correlation of hard X-ray and type 3 radio bursts in solar flares

Technical Report · Mon May 01 04:00:00 EDT 1989

OSTI ID:5343554

Hamilton, R J; Petrosian, V

A large number of hard X-ray events which were recorded by the Hard X-Ray Burst Spectrometer (HXRBS) on the Solar Maximum Mission (SMM) during the maximum of the 21st solar cycle (circa 1980) are analyzed in order to study their statistical correlation with type 3 bursts. The earlier finding by Kane (1981) are confirmed qualitatively that flares with stronger hard X-ray emission, especially those with harder spectra, are more likely to produce a type 3 burst. The observed distribution of hard X-ray and type 3 events and their correlations are shown to be satisfactorily described by a bivariate distribution consistent with the assumption of statistical linear dependence of X-ray and radio burst intensities. From this analysis it was determined that the distribution of the ratio of X-ray intensity (in counts/s) to type 3 intensity (in solar flux units) which has a wide range and a typical value for this ratio of about 10. The implications of the results for impulsive phase models are discussed.

• Research Organization: Stanford Univ., CA (USA)
• OSTI ID: 5343554
• Report Number(s): N-89-27629; NASA-CR--185833; NAS--1.26:185833; CSSA-ASTRO--89-03
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BREMSSTRAHLUNG
COSMIC RADIO SOURCES
DATA
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
INFORMATION
IONIZING RADIATIONS
MATHEMATICAL MODELS
NUMERICAL DATA
RADIATIONS
SOLAR ACTIVITY
SOLAR FLARES
STAR MODELS
STOCHASTIC PROCESSES
X RADIATION