Peak-flux-density spectra of large solar radio bursts and proton emission from flares

Technical Report · Fri Jun 22 00:00:00 EDT 1984

OSTI ID:5503067

Cliver, E W; Gentile, L F; McNamara, L F

The relationship between u-shaped peak-flux-density microwave spectra and solar-proton events is reexamined for about 200 large (Sp( > or= 2 Ghz) > or = 800 sfu) microwave bursts (1965-1979). The radio spectra fell into two basic classes: U-shaped, with two maxima ( > or = 800 sfu) in the range from 200 Mhz to > or = 10 Ghz (59% of all events) and cut-off spectra, with a maximum > or = 800 sfu at f > or = 2 GHz to and Sp(200 MHz) < 100 sfu (18%). Nine percent of the events had intermediate spectra with a maximum > or = 800 sfu at f > or = 2 GHz and 100 sfu < or = Sp(200 MHz) < 800 sfu. Examples of each of these three spectral types are given. 15 percent of the events could not be classified because of incomplete data.

• Research Organization: Air Force Geophysics Lab., Hanscom AFB, MA (USA)
• OSTI ID: 5503067
• Report Number(s): AD-A-187027/8/XAB; AFGL-TR-87-0298
• Resource Relation: Other Information: Pub. in Proceedings of a Workshop on Solar-Terrestrial Predictions, 212-215(18-22 Jun 1984)
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SOLAR ACTIVITY
SOLAR FLARES
SOLAR PROTONS
SOLAR RADIO BURSTS
FLUX DENSITY
BARYONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
HADRONS
NUCLEONS
PROTONS
RADIATIONS
RADIOWAVE RADIATION
SOLAR PARTICLES
SOLAR RADIATION
STELLAR RADIATION
640104* - Astrophysics &amp; Cosmology- Solar Phenomena