Impulsive phase of solar flares. II. Characteristics of the hard X-rays

Journal Article · Wed Jun 15 00:00:00 EDT 1983 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/161081· OSTI ID:5668375

Leach, J; Petrosian, V

We use the results of our investigation into the electron distribution in the general nonthermal models of solar flares to calculate the characteristics of the impulsive hard X-rays. We look at the height distribution, the spectrum, the polarization and directivity of the X-rays, and investigate how these X-ray characteristics are affected by the parameters defining the model. We obtain an expression for the X-ray intensity as a function of source height which is an excellent fit under certain constraints which are discussed. We then look at some recently available data with spatial resolution and show that we are able to reproduce these data adequately with our nonthermal model and to determine the values of the parameters describing the flares.

• Research Organization: Institute for Plasma Research, Stanford University
• OSTI ID: 5668375
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 269:2; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BREMSSTRAHLUNG
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
HARD X RADIATION
IONIZING RADIATIONS
LEPTONS
MAGNETIC FIELDS
POLARIZATION
RADIATIONS
SOLAR ACTIVITY
SOLAR ELECTRONS
SOLAR FLARES
SOLAR PARTICLES
SOLAR RADIATION
SOLAR X-RAY BURSTS
SPECTRA
STELLAR RADIATION
STOKES PARAMETERS
X RADIATION