The impulsive phase of solar flares. 2: Characteristics of the hard X-rays

Technical Report · Thu Dec 31 23:00:00 EST 1981

OSTI ID:6213751

Leach, J; Petrosian, V

The results of an investigation into the electron distribution in the general non-thermal models of solar flares were used to calculate the characteristics of the impulsive hard X-rays. The height distribution, the spectrum, the polarization, and directivity of the X-rays were observed and how these X-ray characteristics are affected by the parameters defining the model was investigated. An expression is obtained for the X-ray intensity as a function of source height which is an excellent fit under certain constraints. Some available data with spatial resolution are examined and it is shown that it is possible to reproduce these data adequately with the non-thermal model and to determine the values of the parameters describing the flares.

• Research Organization: Stanford Univ., CA (USA)
• OSTI ID: 6213751
• Report Number(s): N-8234328; NASA-CR-16979
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BREMSSTRAHLUNG
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
HARD X RADIATION
IONIZING RADIATIONS
LEPTONS
MATHEMATICAL MODELS
POLARIZATION
RADIATIONS
SOLAR ACTIVITY
SOLAR ELECTRONS
SOLAR FLARES
SOLAR PARTICLES
SOLAR RADIATION
SPATIAL DISTRIBUTION
SPECTRA
STELLAR RADIATION
X RADIATION
X-RAY SPECTRA