Relationships between the energetics of impulsive and gradual emissions from solar flares

Journal Article · Mon Feb 15 00:00:00 EST 1982 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/159695· OSTI ID:5025319

Crannell, C J; Karpen, J T; Thomas, R J

The gradual soft x-ray emissions associated with a homogeneous set of solar flares have been investigated in the context of a thermal model proposed to explain the impulsive components. The parametric techniques which successfully characterized the hard x-ray and microwave observations are employed in an event-by-event analysis to test for quanitative and correlative relationships between the impulsive and gradual emissions. The results of this investigation are consistent with the hypothesis that the hard x-ray and microwave emissions are produced by bulk heating of a common thermal source. The quantitative relationships require an additional source to explain the soft x-ray observations, consistent with previous results. Correlations between the energetics of the impulsive and gradual emissions, identified in the present work, provide the first clear evidence that their energizing mechanisms are related.

• Research Organization: Laboratory for Astronomy and Solar Physics, Goddard Space Flight Center
• OSTI ID: 5025319
• Journal Information: Astrophys. J.; (United States), Vol. 253:2
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SOLAR FLARES
EMISSION
DATA ANALYSIS
RADIATION DETECTORS
RADIATION FLUX
SOLAR RADIO BURSTS
SOLAR RADIOWAVE RADIATION
SOLAR X-RAY BURSTS
ELECTROMAGNETIC RADIATION
MEASURING INSTRUMENTS
RADIATIONS
RADIOWAVE RADIATION
SOLAR ACTIVITY
SOLAR RADIATION
STELLAR RADIATION
640104* - Astrophysics & Cosmology- Solar Phenomena