Observations of nuclear emissions in solar flares
The observed energy loss spectra obtained with a gamma-ray detector during a solar flare can consist of a admixture of counts from primary electron bremsstrahlung, broad and narrow nuclear lines, gamma-rays from nuclear pion decay as well as energetic neutrons which survive to 1 AU. The details of each of these spectral components depend in a different way on the properties of both the accelerated particle species and the interaction of target region. In order to extract this information the observed energy loss spectra must be separated into its several components. We present samples of solar flare data from the Gamma Ray Spectrometer on SMM and describe the initial experimental procedures used to separate these components. These experimental unfolding and interpretive procedures along with theoretical modeling of these results have allowed the GRS data to be used to show that both electrons and ions are impulsively accelerated early in solar flares and that this acceleration process can produce electrons >100 MeV and ions >1000 MeV on time scales of 10 seconds.
- Research Organization:
- Space Science Center and Physics Department, University of New Hampshire, Durham, NH 03824
- OSTI ID:
- 6766530
- Report Number(s):
- CONF-871245-; TRN: 88-034561
- Journal Information:
- AIP Conf. Proc.; (United States), Vol. 170:1; Conference: Workshop on nuclear spectroscopy of astrophysical sources, Washington, DC, USA, 14 Dec 1987
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
SOLAR FLARES
GAMMA ASTRONOMY
BREMSSTRAHLUNG
DECAY
ENERGY LOSSES
GAMMA SPECTRA
GAMMA SPECTROMETERS
NUCLEI
PIONS
SOLAR ELECTRONS
SOLAR NEUTRONS
ASTRONOMY
BARYONS
BOSONS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
LEPTONS
LOSSES
MEASURING INSTRUMENTS
MESONS
NEUTRONS
NUCLEONS
PSEUDOSCALAR MESONS
RADIATIONS
SOLAR ACTIVITY
SOLAR PARTICLES
SOLAR RADIATION
SPECTRA
SPECTROMETERS
STELLAR RADIATION
640104* - Astrophysics & Cosmology- Solar Phenomena